University of Lampung | LPPM-UNILA Institutional Repository (LPPM-UNILA-IR)

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Number of items: 169.

Sembiring, Zipora and Bahri, Syaiful and Simanjuntak, Wasinton and Rinawati, Rinawati and Hadi, Sutopo (2023) Effect of Gel Electrolyte, Paste and Electrode on the Efficiency of Dye-Sensitized Solar Cell using Schiff Base Dye Compound. https://doi.org/10.14233/ajchem.2023.24039, 35 (2). pp. 316-320. ISSN ISSN: 0975-427X (Online)

Pauzi, Gurum Ahmad and Samosir, Ahmad Saudi and Sulistiyanti, Sri Ratna and Simanjuntak, Wasinton (2023) Electrochemical Performance of Galvanic Cell with Silver Coated Cathode in One Compartment System Using Seawater as Electrolyte. Science and Technology Indonesia. ISSN e -ISSN:2580-4391 p -ISSN:2580-4405

Ilim, Ilim and Afifah, Alya Ika Nur and Hidayah, Laila and Herliana, Herliana and Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton (2022) Study on corrosion inhibition activity of nitrogen compounds derived from coconut oil methyl ester. Int. J. Corros. Scale Inhib, 11 (4). pp. 1639-1651. ISSN 2305-6894

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Avista, Dira and Arinanda, Ahmad Gilang and Hadi, Sutopo and Amrulloh, Hanif (2022) Synthesis of Hydroxy-Sodalite from Rice Husk Silica and Food-Grade Aluminum Foil as A Catalyst for Biomass Pyrolysis. TRENDS IN SCIENCES, 19 (20). pp. 1-11. ISSN 1884-7080

Simanjuntak, Wasinton (2022) Kegiatan Tambahan Wasinton_Pembimbing S3 dan Reviewer Jurnal Internasional. -. (Unpublished)

Sembiring, Zipora and Nurhasanah, Nurhasanah and Rinawati, Rinawati and Simanjuntak, Wasinton (2022) Implementasi Green Chemistry Menggunakan Teknologi Pirolisis Untuk Pengolahan Limbah Plastik Di Kelurahan Way Urang Kalianda. JURNAL PENGABDIAN MASYARAKAT TABIKPUN, 3 (1). pp. 77-86. ISSN e-ISSN: 2745-7699 p-ISSN: 2746-7759

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Sembiring, Simon (2022) Peer Review_2020_Paten_Pandiangan_Metode Pembuatan MgO/SiO2 Sekam Padi Untuk Pengolahan Minyak Nabati Menjadi Biodiesel. -. (Unpublished)

- (2022) Metode Ekstraksi Silika dari Sekam Padi. IDP000080815.

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Sihombing, Yan (2022) Peer Review_ 2021_Simanjuntak_Journal of physisc conference series. -. (Unpublished)

Simanjuntak, Wasinton and Satria, Heri and Utami, Nurul (2022) Peer Review_2014_Simanjuntak_Indonesian Journal of Chemistry. -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Sebayang, Kerista (2022) Peer Review_2016_Sembiring_Ceramics International. -. (Unpublished)

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Syani, Faradilla and Situmeang, Rudy T.M (2022) Peer Review_2016_Simanjuntak_Oriental journal of chemistry (Volume 32). -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Karo Karo, Pulung (2022) Peer Review_2017_Sembiring_Journal of Asian Ceramic Societies. -. (Unpublished)

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Pratiwi, Endah and Syani, Faradilla (2022) Peer Review_2017_Simanjuntak_Oriental Journal of Chemistry (Volume 33). -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Junaidi, Junaidi (2022) Peer Review_2018_Sembiring_Ceremics Silikaty. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Ilim, Ilim and Satria, Heri and Jamarun, Novesar (2022) Peer Review_2019_Pandiangan_The Journal of Pure and applied chemistry research. -. (Unpublished)

Amrulloh, Hanif and Fatiqin, Awalul and Simanjuntak, Wasinton and Afriyani, Hapin and Annissa, Annissa (2022) Peer Review_2021_Hanif_advances in natural sciences nanoscience and nanotechnology. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Hadi, Sutopo and Ilim, Ilim and Amrulloh, Hanif (2022) Peer Review_2021_Pandiangan_Material Research Express. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Alista, Diska Indah and Ilim, Ilim (2022) Peer Review_2021_Pandiangan_Rasayan journal of chemistry (Volume 14). -. (Unpublished)

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2022) Peer Review_Idra_2019_Rasayan journal of chemistry (Volume 12). -. (Unpublished)

Ilim, Ilim and Fitriani, Fitriani and Prabowo, Tria and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton (2022) Peer Review_Ilim_2021_International journal of corrosion and scale inhibition. -. (Unpublished)

Simanjuntak, Wasinton and Satria, Heri and Utami, Nurul (2021) Similirity_2014_Simanjuntak_IJC_14_3_233-238_2. -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Sebayang, Kerista (2021) Similirity_2016_Sembiring_Ceramics International_Refractory Cordierite_2. -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Karo Karo, Pulung (2021) Similirity_2017_Sembiring_JACER 2017_2. -. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Junaidi, Junaidi (2021) Similirity_2018_Sembiring_Ceramics-Silikáty_2. -. (Unpublished)

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2021) Similirity_2019_Idra_Rasayan Journal of Chemistry_2. -. (Unpublished)

Fatiqin, Awalul and Amrulloh, Hanif and Simanjuntak, Wasinton (2021) Similirity_2021_Fatiqin_Bull Chem SE_2. -. (Unpublished)

Amrulloh, Hanif and Fatiqin, Awalul and Simanjuntak, Wasinton and Afriyani, Hapin and Annissa, Annissa (2021) Similirity_2021_Hanif et al_Adv. Nat. Sci. Nanosci. Nanotechnol._2. -. (Unpublished)

Ilim, Ilim and Fitriani, Rafika and Prabowo, Tria and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton (2021) Similirity_2021_Ilim_ijcsi-2021_v10-n1-p16 (1)_2. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Alista, Diska Indah and Ilim, Ilim (2021) Similirity_2021_Pandiangan_Rasayan Journal of Chemistry_2. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Alista, Diska Indah and Ilim, Ilim (2021) The Effect of NiO Loads on Catalytic Activity of NiO/ZSM-5 for Transesterification of Rubber Seed Oil. Rasayan Journal of Chemistry, 14 (4). pp. 2379-2385. ISSN 0974-1496

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Febriyanti, Tika Dwi (2021) Biogasoline Production by Co-Pyrolysis of Palm Oil and Cassava Tubersusing Protonated Zeolite-A as Catalyst. In: The 11 th International Conference on Green Technology, Oct, 26 2021, Malang. (Unpublished)

Ilim, Ilim and Hidayah, Laila and Marjunus, Roniyus and Bahri, Syaiful and Simanjuntak, Wasinton (2021) FRACTIONATION AND ACTIVITY TEST OF 4-VINYLPYRIDINE OLIGOMER AS ORGANIC CORROSION INHIBITORS OF MILD STEEL IN BRINE SOLUTION SATURATED CARBON DIOXIDE (CO2) MEDIUM. In: The 11th International Conference on Green Technology, 26 Oktober 2021, Malang. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Alista, Diska Indah and Ilim, Ilim and Sinaga, Davincent Andreas (2021) Transesterification of Rubber Seed Oil Using MgO/Zeolite-A as Catalyst. In: The 11 th International Conference on Green Technology, Oct, 26 2021, Malang. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Sinaga, Davincent Andreas and Satria, Heri and Alista, Diska Indah (2021) Transesterification of Rubber Seed Oil with Methanol Using Natural Zeolite Supported NiO Catalyst. In: The 11 th International Conference on Green Technology, Oct, 26 2021, Malang. (Unpublished)

Hadi, Sutopo and Noviany, Noviany and Satria, Heri and Simanjuntak, Wasinton (2021) Synthesis and antimalarial activity of some triphenyltin(IV) aminobenzoate compounds against Plasmodium falciparum. Main Metal Group Chemistry, 44 (1). pp. 256-260. ISSN 2191-0219

Sudirmano, TB Sofi and Ilim, Ilim and Simanjuntak, Wasinton and Bahri, Syaiful (2021) MEKANISME ADSORPSI OLIGOMER 4- VINILPIRIDIN PADA PERMUKAAN BAJA LUNAK SEBAGAI INHIBITOR KOROSI DALAM LARUTAN KOROSIF MENGANDUNG CO2. In: Seminar Nasional Bersama Fakultas MIPA Unila Tahun 2021, 8-9 September 2021, Bandar Lampung. (Unpublished)

Aulia, Mutiara Nur and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Ilim, Ilim (2021) PENGARUH PENAMBAHAN INHIBITOR PRODUK AMIDASI TERHADAP LAJU KOROSI PADA BAJA LUNAK DALAM MEDIUM JENUH CO2. In: Seminar Nasional Bersama Fakultas MIPA Tahun 2021, 8-9 September 2021, Bandar Lampung. (Unpublished)

Simanjuntak, Wasinton and Tampubolon, Yosefin and Pandiangan, Kamisah Delilawati and Situmeang, Rudy T.M (2021) PENGARUH SUHU KALSINASI ZEOLIT-X TERHADAP KARAKTERISTIK LIQUID FUEL HASIL PIROLISIS MINYAK KELAPA SAWIT. In: Seminar Nasional Bersama FMIPA Unila Tahun 2021, 8-9 September 2021, Bandar Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Ruliani, Ruliani and Simanjuntak, Wasinton and Ilim, Ilim (2021) PENGARUH SUHU KALSINASI ZEOLIT-Y TERHADAP KARAKTERISTIK LIQUID FUEL HASIL PIROLISIS MINYAK KELAPA SAWIT. In: SEMINAR NASIONAL BERSAMA FMIPA TAHUN 2021 UNIVERSITAS LAMPUNG, 8-9 September 2021, Bandar Lampung. (Unpublished)

Hadi, Sutopo and samsuar, s and Qudus, Hardoko Insan and Simanjuntak, Wasinton (2021) IN VITRO ANTIBACTERIAL ACTIVITY OF SOME OF DIBUTYLTIN (IV) CHLOROBENZOATE DERIVATIVES AGAINST STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI. ARPN Journal of Engineering and Applied Sciences, 16 (15). pp. 1623-1629. ISSN 1819-6608

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Rilyanti, Mita and Ilim, Ilim (2021) Diseminasi Teknologi Pengolahan Cangkang Biji Karet Menjadi Arang Aktif Berpotensi Industri. Tabikpun, 2 (2). pp. 169-178. ISSN 2745-7699

Rinawati, Rinawati and Sembiring, Simon and Simanjuntak, Wasinton and Rosa, Emantis (2021) Pembuatan Serbuk Pewarna Alami Dari Berbagai Tanaman Tropis Dengan Metode Oven Drying. JURNAL PENGABDIAN KEPADA MASYARAKATTABIKPUN, 2 (2). pp. 101-108. ISSN 2745-7699 p-ISSN: 2746-7759

Rinawati, Rinawati and Sembiring, Zipora and Simanjuntak, Wasinton and Rosa, Emantis (2021) Pembuatan Serbuk Pewarna Alami Dari Berbagai Tanaman Tropis Dengan Metode Oven Drying. JURNAL PENGABDIAN KEPADA MASYARAKATTABIKPUN, 2 (2). pp. 102-108. ISSN 2746-7759

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Hadi, Sutopo and Ilim, Ilim and Amrulloh, Hanif (2021) Similirity_2021_Pandiangan et al_Material Research Express_8_Juni 2021. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Hadi, Sutopo and Ilim, Ilim and Amrulloh, Hanif (2021) Physical characteristics and utilization of ZSM-5 prepared from rice husk silica and aluminum hydroxide as catalyst for transesterification of Ricinus communis oil. Materials Research Express, 8 (065506). pp. 1-12. ISSN 2053-1591

Hadi, Sutopo and Simanjuntak, Wasinton and Qudus, Hardoko Insan and Yandri, Yandri and Herasari, Dian (2021) In Vitro Antimicrobial Activity Study of Some Organotin(IV) Chlorobenzoates against Staphylococcus aureus and Escherichia coli. Journal of Advanced Pharmacy Education & Research [JAPER], 11 (2). pp. 17-22. ISSN 2249-3379

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Hadi, Sutopo (2021) The effect of crystallization time on structure, microstructure, and catalytic activity of zeolite-A synthesized from rice husk silica and food-grade aluminum foil. Biomass and Bioenergy, 148 (106050). ISSN 0961-9534

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Simanjuntak, Agustina and Hadi, Sutopo (2021) Similirity_ 2021_Simanjuntak et al_Biomass and Bioenergy_148_Mei 2021. -. (Unpublished)

Simanjuntak, Wasinton (2021) Lampiran Kegiatan Tambahan_ Membimbing, Menguji Mahasiswa Doktor dan Menjadi Reviewer Jurnal Internasional Bereputasi. -. (Unpublished)

Fatiqin, Awalul and Amrulloh, Hanif and Simanjuntak, Wasinton (2021) GREEN SYNTHESIS OF MgO NANOPARTICLES USING MORINGA OLEIFERA LEAF AQUEOUS EXTRACT FOR ANTIBACTERIAL ACTIVITY. Bulletin of the Chemical Society of Ethiopia, 35 (1). pp. 161-170. ISSN 1011-3924

Ilim, Ilim and Fitriani, Rafika and Prabowo, Tria and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton (2021) Molecular weight distribution and corrosion inhibitor activity of 4-vinylpyridine oligomer synthesized using low concentration hydrogen peroxide as the initiator. International Journal of Corrosion and Scale Inhibition, 10 (1). pp. 284-301. ISSN 2305-6894

Amrulloh, Hanif and Simanjuntak, Wasinton and Afriyani, Hapin (2021) Bioactivities of nano-scale magnesium oxide prepared using aqueous extract of Moringa Oleifera leaves as green agent. Advances in Natural Sciences: Nanoscience and Nanotechnology, 12 (015006). pp. 1-8. ISSN 2043-6262

Amrulloh, Hanif and Simanjuntak, Wasinton and Afriyani, Hapin (2021) Antioxidant and Antibacterial Activities of Magnesium Oxide Nanoparticles Prepared using Aqueous Extract of Moringa Oleifera Bark as Green Agents. Journal of Multidisciplinary Applied Natural Science, 1 (1). pp. 44-53. ISSN 2774-3047

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Sihombing, Yan (2021) Biogasoline production by zeolite-A catalyzed co-pyrolysis of torrefied cassava root and palm oil. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung.

Febriyanti, Tika Dwi and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati (2021) Pyrolitic conversion of palm oil into liquid fuel using protonated zeolite-X prepared from rice husk silica and aluminum foil as catalyst. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung.

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Sihombing, Yan (2021) Similirity_2021_Simanjuntak_J._Phys.__Conf._Ser._1751_012088 (1). -. (Unpublished)

Pangesti, Gesa Gustami and Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Sascori, Soni and Rilyanti, Mita (2021) Synthesis of zeolite-Y from rice husk silica and food grade aluminum foil using modified hydrothermal method. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung.

Herliana, Herliana and Ilim, Ilim and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati (2021) Transesterification of coconut oil (Cocos nucifera L.) into biodiesel using zeolite-A catalyst based on rice husk silica and aluminum foil. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung.

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Jamarun, Novesar and Arief, Syukri (2021) The use of MgO/SiO2 as catalyst for transesterification of rubber seed oil with different alcohols. In: The 3rd International Conference on Applied Sciences Mathematics and Informatics (ICASMI) 2020, 3-4 September 2020, Bandar Lampung.

Ilim, Ilim and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton (2021) The effect of initiator concentrations on corrosion inhibition activity of polymeric derivatives of 2-vinylpyridin. In: Journal of Physics: Conference Series, Volume 1751 The 3rd International Conference on Applied Sciences Mathematics and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung.

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Pratiwi, Endah and Syani, Faradilla (2021) Similirity_2017_Simanjuntak_OJC_33_6_Hydrocarbon Rich Liquid Fuel Produced by Co-pyrolysis of_1. -. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Ilim, Ilim and Satria, Heri and Jamarun, Novesar (2021) Similirity_2019_Pandiangan_JPACR_8_2_Catalytic Performance of CaOSiO2 Prepared from Local Limestone Industry and Rice Husk Silica. -. (Unpublished)

Fatiqin, Awalul and Amrulloh, Hanif and Simanjuntak, Wasinton (2021) Peer Review_2021_Fatiqin_Bulletin of the chemical society of ethiopia. -. (Unpublished)

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Simanjuntak, Agustina and Hadi, Sutopo (2021) Peer Review_2021_Simanjuntak_Biomass and Bionergy. -. (Unpublished)

Yuwono, Suripto D. and Simanjuntak, Wasinton and Hadi, Sutopo (2020) Semicontinuous Fermentation of Cassava by Streptococcus bovis Using Membrane Bioreactor to Produce Lactic Acid. Revista de Chimie, 71 (12). pp. 109-114. ISSN 2668-8212

Suripto, Dwi Yuwono and Kiswandono, Agung Abadi and Simanjuntak, Wasinton and Noviany, Noviany and Sutopo, Hadi (2020) Similarity: Characterization of Carboxymethyl Cellulose (CMC) Synthesized from Microcellulose of Cassava Peel. Materiale Plastice. (Unpublished)

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Sihombing, Yan (2020) BIOGASOLINE PRODUCTION BY ZEOLITE-A CATALYZED CO-PYROLYSIS OF TORREFIED CASSAVA ROOT AND PALM OIL. In: 3RD INTERNATIONAL CONFERENCE ON APPLIED SCIENCE MATHEMATICS AND INFORMATICS (3RD ICASMI), 3-4 September 2020, FMIPA Universitas Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Alista, Diska Indah and Ilim, Ilim (2020) NiO/ZSM-5 catalyzed transesterification of rubber seed oil with methanol. In: 3rd International Conference on Applied Science Mathematics and Informatics (3rd ICASMI), September 3, 2020, Bandar Lampung. (Unpublished)

Febriyanti, Tika Dwi and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati (2020) Pyrolitic Conversion of Palm Oil into Using Protonated Zeolite-X Prepared from Rice Husk Silica and Aluminum Foil as Catalyst. In: 3RD INTERNATIONAL CONFERENCE ON APPLIED SCIENCE MATHEMATICS AND INFORMATICS (3RD ICASMI), 3-4 September 2020, FMIPA Universitas Lampung. (Unpublished)

Pangesti, Gesa Gustami and Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Sascori, Soni and Rilyanti, Mita and Sembiring, Zipora (2020) Synthesis of Zeolite-Y from Rice Husk Silica and Food Grade Aluminium Foil Using Modified Hydrothermal Method. In: 3RD INTERNATIONAL CONFERENCE ON APPLIED SCIENCE MATHEMATICS AND INFORMATICS (3RD ICASMI), 3-4 September 2020, FMIPA Universitas Lampung. (Unpublished)

Herliana, Herliana and Ilim, Ilim and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati (2020) Transesterification of coconut oil (Cocos nucifera L.) into biodiesel using zeolite-A catalyst based on rice husk silica and aluminum foil. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung. (Unpublished)

Ilim, Ilim and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton (2020) The effect of initiator concentrations on corrosion inhibition activity of polymeric derivatives of 2-vinylpyridin. In: The 3rd International Conference on Applied Science, Mathematics, and Informatics (ICASMI), 3-4 September 2020, Bandar Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Jamarun, Novesar and Arief, Syukri (2020) The use of MgO/SiO2 as catalyst for transesterification of rubber seed oil with different alcohols. In: 3RD INTERNATIONAL CONFERENCE ON APPLIED SCIENCE MATHEMATICS AND INFORMATICS (3RD ICASMI), 3-4 September 2020, FMIPA Universitas Lampung. (Unpublished)

Rinawati, Rinawati and Sembiring, Zipora and Simanjuntak, Wasinton and Rosa, Emantis (2020) PEMBUATAN SERBUK PEWARNA ALAMI DARI BERBAGAI TANAMAN TROPIS DENGAN METODE OVEN DRYING. In: Seminar Pengabdian kepada Masyarkat, November 2020, Bandar Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Supriyanto, Supriyanto and Ilim, Ilim and Prasetyo, Ponco and Hadi, Sutopo (2020) Production of Magnesium Oxides from Raw Salt Solution Using Electrochemical Precipitation Method as a Heterogeneous Catalyst for Transesterification of Coconut Oil. Revista de Chimie, 71 (8). pp. 148-158. ISSN 2668-8212

Pauzi, Gurum Ahmad and Nisa, Mia Abi and Samosir, Ahmad Saudi and Sulistiyanti, Sri Ratna and Simanjuntak, Wasinton (2020) Peningkatan Karakteristik Listrik Sel Elektrokimia Cu(Ag)-Zn dengan Penggunaan Anoda Tumbal Mg pada Accumulator Berbahan Air Laut. Jurnal Teori dan Aplikasi Fisika, 08 (01). pp. 83-92. ISSN 2303-016X

Pandiangan, Kamisah Delilawati and Damayanti, Putri and Riyanti, Faulia and Simanjuntak, Wasinton (2020) UJI AKTIVITAS KATALITIK ZSM-5 YANG DISINTESIS DARI SILIKA SEKAM PADI DAN Al(OH)3 PADA REAKSI TRANSESTERIFIKASI MINYAK KELAPA SAWIT. Analit: Analytical and Environmental Chemistry, 5 (01). pp. 53-64. ISSN 2540-8224

Chemistry (2020) Metode Pembuatan MgO/SiO2 Sekam Padi Untuk Pengolahan Minyak Nabti Menjadi Biodiesel. IDP000066828.

Amrulloh, Hanif and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Sagala, Sophia Lasma (2020) Preparation of nano-magnesium oxide from Indonesia local seawater bittern using the electrochemical method. Inorganic and Nano-metal Chemistry.

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Syani, Faradilla and Situmeang, Rudy T.M (2020) Similirity_2016_Simanjuntak_OJC_32_4_The Use of Liquid Smoke as a Substitute for Nitric Acid. -. (Unpublished)

Yuwono, Suripto D. and Wahyuningsih, Endah and Noviany, Noviany and Kiswandono, Agung Abadi and Simanjuntak, Wasinton and Hadi, Sutopo (2020) Characterization of Carboxymethyl Cellulose (CMC) Synthesized from Microcellulose of Cassava Peel. Materiale Plastice, 57 (4). pp. 225-235. ISSN 2668-8220

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Sembiring, Zipora (2019) Zeolit Sintetik Berbasis Silika Sekam Padi: Preparasi, Karakterisasi, dan Aplikasi. -, - (-). Graha Ilmu, Yogyakarta. ISBN 978-623-228-047-2

Pauzi, Gurum Ahmad and Anjarwati, Arie and Samosir, Ahmad Saudi and Sulistiyanti, Sri Ratna and Simanjuntak, Wasinton (2019) Analisis Pemanfaatan Jembatan Garam Kcl Dan Nacl Terhadap Laju Korosi Elektroda Zn Pada Sel Volta Menggunakan Air Laut Sebagai Elektrolit. Analit: Analytical and Environmental Chemistry, 04 (2). pp. 50-58. ISSN 2540-8224

Simanjuntak, Wasinton and Simanjuntak, Agustina and Pandiangan, Kamisah Delilawati (2019) KAJIAN PENGARUH PERBANDINGAN KOMPOSISI BAHAN BAKU CAMPURAN BAGAS TEBU DAN MINYAK BIJI KARET MENJADI LIQUID FUEL MENGGUNAKAN ZEOLIT- X SEBAGAI KATALIS. In: Seminar Nasional Sains, Matematika, Informatika dan Aplikasinya (SN-SMIAP) V, 24-25 Oktober 2019, FMIPA Universitas Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Damayanti, Putri and Riyanti, Faulia and Simanjuntak, Wasinton (2019) UJI AKTIVITAS KATALITIK ZSM-5 YANG DISINTESIS MENGGUNAKAN SILIKA SEKAM PADI DAN AL(OH)3 PADA REAKSI TRANSESTERIFIKASI MINYAK KELAPA SAWIT. In: Seminar Nasional Sains, Matematika, Informatika dan Aplikasinya (SN-SMIAP) V, 24-25 Oktober 2019, FMIPA Universitas Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Pratiwi, Endah and Rilyanti, Mita (2019) Characteristics and catalytic activity of zeolite-a synthesized from rice husk silica and aluminium metal by sol-gel method. Journal of Physics: Conference Series, 1338 (1). pp. 1-9. ISSN 1742-6596

Simanjuntak, Agustina and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora (2019) The Effect of Sugarcane Bagasse to Rubber Seed Oil Ratios on TheChemical Composition of Liquid Fuels Produced by Zeolite-y Catalyzed Pyrolysis. Journal of Physics: Conference Series, 1338. pp. 1-8. ISSN 1742-6596

Samsuar, Samsuar and Simanjuntak, Wasinton and Qudus, Hardoko Insan and Hadi, Sutopo (2019) The potential of derivatives of organotin(IV) benzoate compounds in medicinal chemistry. Journal of Physics: Conference Series, 1338. pp. 1-5. ISSN 1742-6596

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2019) BIODIESEL PREPARATION FROM OIL FRACTION OF CRUDE POND PALM OIL THROUGH SiO2/SO3- H+-CATALYZED ESTERIFICATION FOLLOWED BY KOH-CATALYZED TRANSESTERIFICATION. 10th International Conference on Green Technology (ICGT) 2019. (Unpublished)

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2019) Biodiesel Preparation from Oil Fraction of Crude Pond Palm Oil through SiO2/SO3- H+-Catalyzed Esterification Followed by KOH-Catalyzed Transesterification. In: 10th International Conference on Green Technology (ICGT 2019). (Unpublished)

Ilim, Ilim and Bahri, Syaiful and Marjunus, Roniyus and Simanjuntak, Wasinton and Rilyanti, Mita (2019) Comparative study of CO2 Corrosion inhibition of mild steel in brine solution by the oligomers of 2-vinylpyridine and 4-vinylpyridine. In: The 10th International Conference on Green Technology, 2-3 Oktober 2019, Malang. (Unpublished)

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Pangesti, Gesa Gustami and Simanjuntak, Agustina (2019) The Effect of Crystallization Time on Structure, Microstructure, and Catalytic Activity of Zeolite-A Synthesized from Rice Husk Silica and Food-grade Aluminum Foil. In: The 10th International Conference on Green Technology (ICGT), 2-3 Oktober 2019, Malang. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Ilim, Ilim and Herasari, Dian and Alista, Diska Indah (2019) Preparation of ZSM-5 from Rice Husk Silica and Aluminum Foil Using Tetrapropylammonium Bromide(TPABr)as a Template. In: The 10th International Conference on Green Technology ICGT, 2-3 Oktober 2019, Malang. (Unpublished)

Sascori, Soni and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati (2019) Preparation of Zeolite-Y from Rice Husk Silica and Food Grade Aluminum Foil as Catalyst for Co-pyrolysis of Mixed Cassava Tuber and Palm Oil. In: The 10th International Conference on Green Technology (ICGT), 2-3 Oktober 2019, Malang. (Unpublished)

Pangesti, Gesa Gustami and Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton (2019) Transesterification of Coconut Oil Using MgO Doped Zeolite-Y Prepared from Rice Husk Silica. In: The 10th International Conference on Green Technology (ICGT), 2-3 Oktober 2019, Malang. (Unpublished)

Ilim, Ilim and Bahri, Syaiful and Marjunus, Roniyus and Satria, Heri and Simanjuntak, Wasinton (2019) OLIGOMERISASI 2-VINILPIRIDIN DAN UJI AKTIVITASNYA SEBAGAI INHIBITOR KOROSI BAJA LUNAK DALAM BRINE SOLUTION YANG JENUH GAS CO2. In: Seminar & Rapat Tahunan BKS PTN Wilayah Barat Bidang MIPA 2019, 6-7 Juli 2019, Bengkulu. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Ilim, Ilim and Rilyanti, Mita and Herasari, Dian (2019) PENGARUH WAKTU KRISTALISASI TERHADAP STRUKTUR DAN MIKROSTRUKTUR SERTA AKTIVITAS KATALITIK ZSM-5 BERBASIS SILIKA SEKAM PADI. In: SEMIRATA BKS PTN BARAT BIDANG MIPA 2019 & The 2nd ICST "Science and Technology for Nation Prosperity", 6-7 Juli 2019, Bengkulu. (Unpublished)

Situmeang, Rudy T.M and Sembiring, Zipora and Simanjuntak, Wasinton and Dwi Yuwono, Suripto and Sembiring, Simon (2019) CHARACTERISTICS OF LaCrO3 NANOMATERIAL THE EFFECT OF THE CALCINATION TEMPERATURE. Journal of Chemical Technology and Metallurgy, 54 (4). pp. 715-720. ISSN 1314-7978

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2019) PHYSICAL CHARACTERISTICS AND CATALYTIC ACTIVITY OF SULFATED SUGARCANE BAGASSE SILICA (SiO2/SO3 -H+) FOR COCONUT OIL TRANSESTERIFICATION. Rasayan Journal of Chemistry, 12 (3). pp. 1595-1600. ISSN 0974-1496 | e-ISSN: 0976-0083

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Satria, Heri and Ilim, Ilim and Jamarun, Novesar (2019) Catalytic Performance of CaO/SiO2 Prepared from Local Limestone Industry and Rice Husk Silica. The Journal of Pure and Applied Chemistry Research, 8 (2). pp. 170-178. ISSN 2302-4690

Amrulloh, Hanif and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Sagala, Sophia Lasma and Bramawanto, Rikha and Nahrowi, Ridho (2019) Effect of Dilution and Electrolysis Time on Recovery of Mg2+ As Mg(OH)2 from Bittern by Electrochemical Method. Journal of Pure and Applied Chemistry Research, 8 (1). pp. 87-95. ISSN p-ISSN:2302-4690, e-ISSN:2541-0733

Sembiring, Simon and Simanjuntak, Wasinton (2019) Karakteristik Fungsional Dan Sifat Fisis Aspal Akibat Penambahan Silika Sekam Padi. Jurnal Teori dan Aplikasi Fisika, 07 (01). pp. 77-82. ISSN 2303-016X

Situmeang, Rudy T.M and Simanjuntak, Wasinton and Sembiring, Simon and Sembiring, Zipora (2019) LaCrO nano photocatalyst: the effect of calcination temperature on its cellulose conversion activity under UV-ray irradiation 3. Advances in Natural Sciences: Nanoscience and Nanotechnology.

Situmeang, Rudy T.M and Tamba, Matthew and Erwin, Simarmata and Tria, Yuliarni and Simanjuntak, Wasinton and Sembiring, Zipora and Sembiring, Simon (2019) LaCrO3 nano photocatalyst: the effect of calcination temperature on its cellulose conversion activity under UV-Vis Irradiation. Advances in Natural Sciences: Nanoscience and Nanotechnology, 10 (1). 015009-015017. ISSN 2043-6262

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Simanjuntak, Agustina (2019) Liquid Fuel Production by Zeolite-A Catalyzed Pyrolysis of Mixed Cassava Solid Waste and Rubber Seed Oil. Oriental Journal of Chemistry, 35 (1). pp. 71-76. ISSN 0970-020 X

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2019) Preliminary Study on Functional Groups Characteristics of Asphalt Containing Rice Husk Silica. Journal of Technomaterials Physics, 1 (1). pp. 61-66. ISSN 2656-0755

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2019) STRUCTURE AND MICROSTRUCTURE PROPERTIES OF А REFRACTORY CORDIERITE PREPARED FROM AMORPHOUS RICE HUSK SILICA RESULTING FROM PERICLACE INTRODUCTION. Simon Sembiring, Wasinton Simanjuntak, Rudy Situmeang Journal of Chemical Technology and Metallurgy, 54 (4). pp. 721-726.

Chemistry (2018) Sintesis dan Karakterisasi Zeolit-A dari Silika Sekam Padi dan Logam Aluminium Secara Sol Gel. P00201810638.

Sembiring, Zipora and Simanjuntak, Wasinton (2018) PKM Kelompok Pengerajin Makanan Berbasis Pewarna di Desa Panggung Rejo dan Pandan Sari Kabupaten Pringsewu. Prosiding Seminar Nasional Hasil-hasil Pengabdian kepada Masyarakat 2018. pp. 350-359. ISSN 978-602-0860-27-5

Ilim, Ilim and Satria, Heri and Simanjuntak, Wasinton and Rilyanti, Mita and Pandiangan, Kamisah Delilawati (2018) MONOMER 2-VINILPIRIDIN DAN TURUNANNYA SEBAGAI INHIBITOR KOROSI BAJA LUNAK DALAM LARUTAN GARAM YANG JENUH GAS CO2. In: Seminar Hasil Penelitian Tahun 2018, 13 November 2018, Hotel Bukit Randu, Bandar Lampung. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Satria, Heri and Ilim, Ilim and Laila, Aspita (2018) SINTESIS CaO/SiO 2 DENGAN METODE SOL GEL DAN APLIKASINYA SEBAGAI KATALIS REAKSI TRANSESTERIFIKASI MINYAK KELAPA. In: Seminar Nasional Hasil-Hasil Pengabdian Kepada Masyarakat 2018, Rabu, 14 November 2018, Hotel Bukit Randu Bandar Lampung. (Unpublished)

Sembiring, Zipora and Simanjuntak, Wasinton (2018) PKM KELOMPOK PENGRAJAIN MAKANAN BERBASIS PEWARNA ALAMI DI DESA PANGGUNG REJO DAN PANDAN SARI KABUPATEN PRINGSEWU. In: SemNas Pengabdian 2018, 14 November 2018, Bandar Lampung. (Submitted)

- (2018) Sintesis dan Karakterisasi Zeolit-A dari Silika Sekam Padi dan Logam Aluminium Secara Sol Gel. -.

Simanjuntak, Agustina and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora (2018) The Effect of Sugarcane Baggase to Rubber Seed Oil Ratios on the Chemical Composition of Liquid Fuels Produced by Zeolite-Y Catalyzed Pyrolysis. In: The 2nd International Conference on Applied Sciences Mathematics and Informatics, 9-11 Agustus 2018, Hotel Horison, Bandar Lampung, Indonesia. (Unpublished)

Ilim, Ilim and Rilyanti, Mita and Herasari, Dian and Satria, Heri and Simanjuntak, Wasinton (2018) Imidazoline-Containing Surfactants as Corrosion Inhibitors of Mild steel in CO2 Environment. In: The 2nd International Conference on Applied Sciences, Mathematics and Informatics (ICASMI), August 09th -11st , 2018, Horison Hotel Bandar Lampung,.

Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Sembiring, Zipora and Simanjuntak, Agustina (2018) Liquid fuel production by zeolite-A catalyzed pyrolysis of mixed cassava solid waste and rubber seed oil. In: The 2nd International Conference on Applied Sciences Mathematics and Informatics, 9-11 Agustus 2018, Hotel Horison, Bandar Lampung, Indonesia. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Rilyanti, Mita (2018) Characteristics and Catalytic Activity of Zeolite-A Synthesized from Rice Husk Silica and Aluminium Metal by Sol-Gel Method. In: The 2nd International Conference on Applied Sciences Mathematics and Informatics, 9-11 Agustus 2018, Hotel Horison, Bandar Lampung, Indonesia. (Unpublished)

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin (2018) Physical Characteristics and Catalytic Activity of Sulfated Sugarcane Bagasse Silica (SiO2/SO3-H+)for Coconut Transesterification. In: The 2nd International Conference on Applied Sciences Mathematics and Informatics, 9-11 Agustus 2018, Hotel Horison, Bandar Lampung, Indonesia. (Unpublished)

Supryanto, R and Simanjuntak, Wasinton and Pandiangan, Kamisah Delilawati and Situmeang, Rudy T.M and Ahmadhani, Muhammad Yusri (2018) Chemical Composition of Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Sludge Palm Oil Using Zeolite-Y as Catalyst. Oriental Journal of Chemistry, 34 (3). pp. 1533-1540. ISSN 0970-020 X

Ilim, Ilim and Simanjuntak, Wasinton and Herasari, Dian and Rilyanti, Mita and Satria, Heri (2018) EFEK KEROSIN PADA KEMAMPUAN BEBERAPA SENYAWA KOMERSIAL YANG MENGANDUNG NITROGEN SEBAGAI INHIBITOR KOROSI DALAM LARUTAN MEDIUM KOROSIF YANG JENUH DENGAN CO2 DAN MENGANDUNG KEROSIN. In: SEMIRATA 2018 Bidang MIPA Wilayah Barat, 4-6 May 2018, INDONESIA. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Sembiring, Zipora and Situmeang, Rudy T.M and Satria, Heri (2018) LIQUID FUEL PRODUCTION BY CO-PYROLYSIS OF SUGARCANE BAGASSE AND RUBBER SEED OIL USING ZEOLITE-A SYNTHESIZED FROM RICE HUSK SILICA AND ALUMINUM METAL AS CATALYST. In: SEMIRATA 2018 Bidang MIPA Wilayah Barat, 4-6 May 2018, INDONESIA. (Unpublished)

Simanjuntak, Wasinton and Sembiring, Zipora and Pandiangan, Kamisah Delilawati and Simanjuntak, Agustina and Ilim, Ilim and Rilyanti, Mita (2018) PYROLYTIC CONVERSION OF SUGARCANE BAGASSE AND RUBBER SEED OIL MIXTURE INTO LIQUID FUEL CATALYZED BY ZEOLITE-Y SYNTHESIZED FROM RICE HUSK SILICA AND ALUMINUM METAL. In: SEMIRATA 2018 Bidang MIPA Wilayah Barat, 4-6 May 2018, INDONESIA. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Junaidi, Junaidi (2018) STRUCTURAL AND PHYSICAL PROPERTIES OF REFRACTORY CORDIERITE PRECURSORS PREPARED FROM RICE HUSK SILICA WITH DIFFERENT MgO ADDITION. Ceramics-Silikáty, 62 (2). pp. 163-172. ISSN 1804-5847

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Rilyanti, Mita and Jamarun, Novesar and Arief, Syukri (2017) Influence of Kinetic Variables on Rubber Seed Oil Trans-esterification Using Bifunctional Catalyst CaO-MgO/SiO2. Oriental Journal of Chemistry, 33 (6). pp. 2891-2898. ISSN 0970-020 X

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Pratiwi, Endah and Syani, Faradilla (2017) Hydrocarbon Rich Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Aluminosilicates Derived from Rice Husk Silica and Aluminum Metal as Catalyst. Oriental Journal of Chemistry, 33 (6). pp. 3218-3224. ISSN 0970-020 X

Simanjuntak, Wasinton and Sembiring, Zipora and Pandiangan, Kamisah Delilawati and Sembiring, Simon and Pratiwi, Endah (2017) Liquid Fuel Production By Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Zeolite-A Synthesized From Rice Husk Silica and Aluminum Metal as Catalyst. In: The 1st International Conference on Science, Mathematics, Environment and Education (ICoSMEE), 16 September 2017, Solo, Indonesia. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Rilyanti, Mita and Jamarun, Novesar and Arief, Syukri (2017) Synthesis of Bifungsional Catalyst (CaO-MgO/SiO2) for Transesterification Rubber Seed Oil. In: The 1st International Conference on Science, Mathematics, Environment and Education (ICoSMEE), 16 September 2017, Solo. (Unpublished)

Simanjuntak, Wasinton and Sembiring, Zipora and Pandiangan, Kamisah Delilawati (2017) Chemical Composition Of Liquid Fuel Produced By Co Pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Zeolite-X Synthesized From Rice Husk Silica and Aluminum Metal as a Catalyst. In: Seminar Nasional Kimia, SNK 2017, 11 September 2017, Padang, Sumatera Barat. (Unpublished)

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton and Rilyanti, Mita and Pratiwi, Endah (2017) Sintesis Zeolit-X dari Silika Sekam Padi dan Logam Aluminum dan Uji Aktivitasnya Sebagai Katalis untuk Transesterifikasi Minyak Biji Jarak Kaliki. In: Seminar Nasional Kimia 2017, Green Chemistry dan Energi Terbarukan untuk Kehidupan Masa Depan, Universitas Andalas, Padang 11 September 2017, 11 September 2017, Padang, Sumatera Barat. (Unpublished)

Situmeang, Rudy and Supryanto, R and Kahar, Lolita N. Albert and Simanjuntak, Wasinton and Sembiring, Simon (2017) Characteristics of Nano-Size LaCrO3 Prepared Through Sol-gel Route Using Pectin as Emulsifying Agent. Oriental Journal of Chemistry, 33 (4). pp. 1705-1713. ISSN 0970-020 X

Sembiring, simon and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2017) Effect of MgO-SiO2 Ratio on the Forsterite (Mg2SiO4) Precursors Characteristics Derived from Amorphous Rice Husk Silica. ORIENTAL JOURNAL OF CHEMISTRY, 33 (4). pp. 1828-1836. ISSN 0970-020 X

Sembiring, Simon and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2017) Effect of MgO-SiO2Ratio on the Forsterite (Mg2SiO4) Precursors Characteristics Derived from Amorphous Rice Husk Silica. ORIENTAL JOURNAL OF CHEMISTRY, 33 (4). pp. 1828-1836. ISSN 0970-020 X

Simanjuntak, Wasinton and Sembiring, Zipora and Pandiangan, Kamisah Delilawati and Situmeang, Rudy T.M (2017) Chemical Composition of Liquid Fuel Produced By Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Zeolite-Y Synthesized From Rice Husk Silica and Aluminum Metal as Catalyst. In: First International Conference on Applied Sciences, Mathematics and Informatics 1st ICASMI 2017, 13 - 15 Juli 2017, Bandar Lampung. (Unpublished)

Pratiwi, Endah and Simanjuntak, Wasinton and Sembiring, Simon and Sembiring, Zipora and Pandiangan, Kamisah Delilawati (2017) Co-Pyrolysis of Sugarcane Bagasse and Castor Oil Using Aluminosilicates with Different Si/Al Ratios as Catalyst. In: 1st International Conference on Applied Sciences Mathematics and Informatics, 13-15 Juli 2017, Hotel Horison, Bandar Lampung. (Unpublished)

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Karo Karo, Pulung (2017) Effect of alumina addition on the phase transformation and crystallisation properties of refractory cordierite prepared from amorphous rice husk silica. Journal of Asian Ceramic Societies, 5 (2). pp. 186-192. ISSN 2187-0764

Ilim, Ilim and Bahri, Syaiful and Simanjuntak, Wasinton and Syah, Yana Maolana and Bundjali, Bunbun and Buchari, Buchari (2017) Performance of oligomer 4-vinylpiperidine as a carbon dioxide corrosion inhibitor of mild steel. Journal of Materials and Environmental Sciences, 08 (07). pp. 2381-2390. ISSN 2028-2508

Pandiangan, Kamisah Delilawati and Arief, Syukri and Jamarun, Novesar and Simanjuntak, Wasinton (2017) Synthesis of Zeolite-X from Rice Husk Silica and Aluminum Metal as a Catalyst for Transesterification of Palm Oil. Journal of Materials and Environmental Science, 8 (5). pp. 1797-1802. ISSN 2028-2508

SEMBIRING, SIMON and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2017) Effect of MgO-SiO2 Ratio on the Forsterite (Mg2SiO4)) Precursors Characteristics Derived from Amorphous Rice Husk Silica. ORIENTAL JOURNAL OF CHEMISTRY, 33 (4). pp. 1828-1836. ISSN 0970-020 X

Pandiangan, Kamisah Delilawati and Jamarun, Novesar and Arief, Syukri and Simanjuntak, Wasinton and Rilyanti, Mita (2016) The Effect of Calcination Temperatures on the Activity of CaO and CaO/SiO2 Heterogeneous Catalyst for Transesterification of Rubber Seed Oil In the Presence of Coconut Oil as a Co-reactant. Oriental Journal of Chemistry, 32 (6). pp. 3021-3026. ISSN 0970-020 X

Simanjuntak, Wasinton and Sembiring, Simon and Pandiangan, Kamisah Delilawati and Syani, Faradilla and Situmeang, Rudy T.M (2016) The Use of Liquid Smoke as a Substitute for Nitric Acid for Extraction of Amorphous silica from Rice husk through Sol-Gel R. Oriental Journal of Chemistry, 32 (4). pp. 2079-2085. ISSN 0970-020 X

Ilim, Ilim and Jefferson, Alan and Simanjuntak, Wasinton and Jeannin, Marc and Yana, Maolana Syah and Bundjali, Bunbun and Buchari, Buchari (2016) SYNTHESIS AND CHARACTERIZATION OF OLIGOMER 4-VINYLPYRIDINE AS A CORROSION INHIBITOR FOR MILD STEEL IN CO2 SATURATED BRINE SOLUTION. Indonesian Journal of Chemistry, 16 (2). pp. 198-207. ISSN 1411 9420

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Sebayang, Kerista (2016) Preparation of refractory cordierite using amorphous rice husk silica for thermal insulation purposes. Ceramic Internasional, 42 (7). pp. 8431-8437. ISSN 0272-8842

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Riyanto, Agus and Kerita, Sebayang (2016) Preparation of refractory cordierite using amorphous rice husk silica for thermal insulation purposes. Ceramic International, 42 (7). pp. 8431-8437. ISSN 0272-8842

Pandiangan, Kamisah Delilawati and Jamarun, Novesar and Arief, Syukri and Simanjuntak, Wasinton (2016) Transesterification of Castor oil using MgO/SiO2 Catalyst and Coconut oil as Co-reactant. Oriental Journal of Chemistry, 32 (1). pp. 385-390. ISSN 0970-020X

Sembiring, Simon and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Sebayang, Kerista (2016) EFEK PENAMBAHAN ALUMINA PADA KARAKTERISTIK MIKROSTRUKTUR DAN FISIS CORDIERITE DARI SILIKA AMORPH SEKAM PADI. In: PROSIDING SEMINAR NASIONAL KIMIA – LOMBOK 2016, 10-11 2016, http://kimia.mipa.unram.ac.id/index.php/tag/seminar-nasional-kimia-2016/.

Sembiring, Simon and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M and Sebayang, Kerista (2016) EFEK PENAMBAHAN ALUMINA PADA KARAKTERISTIK MIKROSTRUKTUR DAN FISIS CORDIERITE DARI SILIKA AMORPH SEKAM PADI. In: SEMINAR NASIONAL KIMIA ( SNK ) 2016, 10 - 11 Agustus 2016, Mataram.

Sembiring, Simon and Riyanto, Agus and Rumiyanti, Leni and Simanjuntak, Wasinton and Situmeang, Rudy T.M (2016) Effect of Alumina addition on the Phase Composition of Cordierite Precursors from Rice Husk Silica. In: SEMIRATA Bidang MIPA 2016; BKS-PTN Barat, 22-24 Mei 2016, Palembang.

Situmeang, Rudy T.M and wibowo, sukma and Simanjuntak, Wasinton and Supryanto, R and Amalia, Rizki and Septanto, Mitra and Manurung, Posman and Sembiring, Simon (2015) Characteristics of Nanosize Spinel NixFe3-XO4 Prepared By Sol-Gel Method Using Egg White As Emulsifying Agent. Indonesian Journal of Chemistry, 15 (2). pp. 116-122. ISSN 1411 9420

Situmeang, Rudy T.M and Manurung, Posman and Sulistyo, Septhian Tri and Hadi, Sutopo and Simanjuntak, Wasinton and Sembiring, Simon (2015) Sol-Gel Method for Preparation Of Nanosize NiFe2-XCoxO4 Using Egg White. Asian Journal of Chemistry, 27 (3). pp. 1138-1142. ISSN ISSN: 0975-427X (Online)

Sembiring, Simon and Simanjuntak, Wasinton (2015) silika sekam padi potensinya sebagai bahan baku keramik industri. 1 . plantaxia, Bandar Lampung. ISBN 978-602-691 2-00-8

Simanjuntak, Wasinton and Sembiring, Simon and Zakaria, Wan Abbas and Pandiangan, Kamisah Delilawati (2014) The Use of Carbon Dioxide Released from Coconut Shell Combustion to Produce Na2CO3. Makara J.Sci, 18 (3).

Simanjuntak, Wasinton and Satria, Heri and Utami, Nurul (2014) PRODUCTION OF REDUCING SUGAR FROM CASSAVA SOLID WASTE BY SIMULTANEOUS ULTRASONICATION AND ACID HYDROLYSIS. Indonesian Journal of Chemistry, 14 (3). pp. 233-238. ISSN 1411 9420

Simanjuntak, Wasinton and Sembiring, Simon and Zakaria, Wan Abbas and Pandiangan, Kamisah Delilawati (2014) Similarity The Use of Carbon Dioxide Released from Coconut Shell Combustion to Produce Na2CO3. Makara J. Sci. 18/3 (2014), 65-70 doi: 10.7454/mss.v18i3.3717, 18 (3). ISSN ISSN 2339-1995 e-ISSN 2356-0851

Situmeang, Rudy T.M and Supriyanto, R and Septianto, Mitro and Simanjuntak, Wasinton and Sembiring, Simon and Roger, Anne-Cecile (2013) NixCoyFe1-x-yO4 Nanocatalyst: Preparation, Characterization and Catalytic Activity in CO2/H2 Conversion. In: the 2nd International Confrence of the Indonesian Chemical Society 2013, 22 - 23 October 2013, Yogyakarta.

Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton (2013) TRANSESTERIFICATION OF COCONUT OIL USING DIMETHYL CARBONATE AND TiO2/SiO2 HETEROGENEOUS CATALYST. Indonesian Journal of Chemistry, 13 (1). pp. 47-52. ISSN 1411 9420

Simanjuntak, Wasinton and Sembiring, Simon and Manurung, Posman and Situmeang, Rudy T.M and Low, I.M (2013) Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal. Ceramic Internasional, 39 (8). pp. 9369-9375. ISSN 0272-8842

Kharlin, Kharlin and Ilim, Ilim and Simanjuntak, Wasinton (2012) PENGOLAHAN LIMBAH CAIR RESTORAN DENGAN METODE ELEKTROKOAGULASI MENGGUNAKAN ELEKTRODA ALUMINIUM DENGAN SUSUNAN DIPOLAR. In: PROSIDING SEMINAR NASIONAL SAINS MATEMATIKA INFORMATIKA DAN APLIKASINYA III (SN-SMAIP III) 2012, 28– 29 Juni 2012, Bandar Lampung.

Uyun, Kurratul and Ilim, Ilim and Simanjuntak, Wasinton (2012) STUDI PENGARUH POTENSIAL, WAKTU KONTAK, DAN pH TERHADAP METODE ELEKTROKOAGULASI LIMBAH CAIR RESTORAN MENGGUNAKAN ELEKTRODA Fe DENGAN SUSUNAN MONOPOLAR DAN DIPOLAR. In: PROSIDING SEMINAR NASIONAL SAINS MATEMATIKA INFORMATIKA DAN APLIKASINYA III (SN-SMAIP III) 2012, 28– 29 Juni 2012, Bandar Lampung.

Situmeang, Rudy T.M and Supriyanto, Supriyanto and Simanjuntak, Wasinton and Susilo, Joko (2009) NiO/LaCrO3 Catalyst for converting methane to Methanol. In: International Seminar ON SUSTAINABLE BIOMASS PRODUCTION AND UTILIZATION: CHALLENGES AND OPPORTUNITIES, 3-4 Augsut 2009, Bandar L ampung.

Sembiring, Zipora and Bahri, Syaiful and Simanjuntak, Wasinton and Rinawati, Rinawati and Hadi, Sutopo Effect of Gel Electrolyte, Paste and Electrode on the Efficiency of Dye-Sensitized Solar Cell using Schiff Base Dye Compound. https://asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=35_2_7.

Sembiring, Simon and Riyanto, Agus and Simanjuntak, Wasinton and Situmeang, Rudy T.M Effect of MgO-SiO2 Ratio on the Forsterite (Mg2SiO4) Precursors Characteristics Derived from Amorphous Rice Husk Silica. oriental of chemistry, Vol. 3. ISSN 0970-020 X CODEN: OJCHEG 2017, Vol. 33, No. (4): Pg.1828-1836

Herlina, Idra and Simanjuntak, Wasinton and Rilyanti, Mita and Safitra, Edwin PHYSICAL CHARACTERISTICS AND CATALYTIC ACTIVITY OF SULFATED SUGARCANE BAGASSE SILICA (SiO2/SO3 -H+)FOR COCONUT OIL TRANSESTERIFICATION. Rasayan Journal of Chemistry, 12 (3). pp. 1595-1600. ISSN 0974-1496

Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M STRUCTURE AND MICROSTRUCTURE PROPERTIES OF А REFRACTORY CORDIERITE PREPARED FROM AMORPHOUS RICE HUSK SILICA RESULTING FROM PERICLACE INTRODUCTION. Journal of Chemical Technology and Metallurgy, 54, 4, 2019, 721-726.

Sembiring, Simon and Simanjuntak, Wasinton and situmeang, rudy Structure and Microstructure Properties of Refractory Cordierite Prepared from Amorphous Rice Husk Silica by Periclace Addition. In: The 1st INTERNATIONAL CONFERENCE ON SCIENCE, MATHEMATICS, ENVIRONMENT AND EDUCATION, September 16-17, 2017, Best Western Premier, Solo City, Central Java, Indonesia..

Ilim, Ilim and Afifah, Alya Ika Nur and Hidayah, Laila and Herliana, Herliana and Pandiangan, Kamisah Delilawati and Simanjuntak, Wasinton Study on corrosion inhibition activity of nitrogen compounds derived from coconut oil methyl ester. the European Federation of Corrosion Working Party 1: Corrosion and Scale Inhibition.. (Unpublished)

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