Bio‑oil hydrodeoxygenation over zeolite‑based catalyst: the effect of zeolite activation and nickel loading on product characteristics

by Gea, Saharman, Irvan, Irvan, Wijaya, Karna, Nadia, Asma, Pulungan, Ahmad Nasir, Sihombing, Junifa Layla, Rahayu, Rahayu
Published 2022

Acetylated lignin from oil palm empty fruit bunches and its electrospun nanofibres with PVA: potential carbon fibre precursor

by Harahap, Mahyuni, Perangin-Angin, Yurika Almanda, Purwandari, Vivi, Goei, Ronn, Tok, Alfred Iing Yoong, Gea, Saharman
Published 2023

Compression strength of metal-ceramic fixed dental prostheses reinforced by nanoparticle silica from rice husks

by Sinamo, Sopan, Gea, Saharman, Tarigan, Slamat, Putra, Deddi Prima, Yen, Zhihao, Goei, Ronn, Tok, Alfred Iing Yoong
Published 2024

Synthesis of fluorescent citric acid carbon dots composites derived from empty fruit bunches of palm oil tree and its anti-bacterial property

by Pramudita, Rufina, Marpongahtun, Gea, Saharman, Daulay, Amru, Harahap, Mahyuni, Tan, Yong Zen, Goei, Ronn, Tok, Alfred Iing Yoong
Published 2023

Highly fluorescent nitrogen-doped carbon dots derived from jengkol peels (Archindendron pauciflorum) by solvothermal synthesis for sensitive Hg²⁺ ions detection

by Prayugo, Aniza Salviana, Marpongahtun, Gea, Saharman, Daulay, Amru, Harahap, Mahyuni, Siow, Jonathan, Goei, Ronn, Tok, Alfred Iing Yoong
Published 2023

Pyrolysis of palm fronds waste into bio-oil and upgrading process via esterification-hydrodeoxygenation using Cu–Zn metal oxide catalyst loaded on mordenite zeolite

by Pulungan, Ahmad Nasir, Goei, Ronn, Harahap, Fauziyah, Simatupang, Lisnawaty, Suriani, Cicik, Gea, Saharman, Hasibuan, Muhammad Irvan, Sihombing, Junifa Layla, Tok, Alfred Iing Yoong
Published 2023

Photocatalytic degradation of methylene blue Using N-doped ZnO/carbon dot (N-ZnO/CD) nanocomposites derived from organic soybean

by Ayu, Dinda Gusti, Gea, Saharman, Andriayani, Dewi Junita, Telaumbanua, Dewi Junita, Piliang, Averroes Fazlur Rahman, Harahap, Mahyuni, Yen, Zhihao, Goei, Ronn, Tok, Alfred Iing Yoong
Published 2023

Two stages upgrading of bio-oil through esterification and hydrodeoxygenation reactions using Fe₂O₃-CoO supported catalyst

by Pulungan, Ahmad Nasir, Goei, Ronn, Kembaren, Agus, Nurfajriani, Nurfajriani, Sihombing, Junifa Layla, Gea, Saharman, Wong, Hana Ria, Hasibuan, Muhammad Irvan, Rahayu, Rahayu, Tok, Alfred Iing Yoong
Published 2023