Appaturi, Jimmy Nelson and Ramalingam, R. Jothi and Selvaraj, Manickam and Chia, Stephen and Tan, Soon Huat and Khoerunnisa, Fitri and Ling, Tau Chuan and Ng, Eng-Poh (2021) Selective synthesis of triacetyl glyceride biofuel additive via acetylation of glycerol over NiO-supported TiO2 catalyst enhanced by non-microwave instant heating. Applied Surface Science, 545. ISSN 0169-4332, DOI https://doi.org/10.1016/j.apsusc.2021.149017.
Full text not available from this repository.Abstract
NiO-supported TiO2 (nNiO/TiO2) as highly active and selective catalysts for triacetyl glyceride (TAG) biofuel additive production via acetylation of glycerol is reported. The catalysts are prepared by incorporating various amounts of Ni2+ (n = 10, 30 and 50 wt% Ni added during catalysts preparation) onto the TiO2 support using simple sol-gel approach followed by calcination. The spectroscopy and microscopy analyses reveal that the NiO nanoparticles (ca. 6 nm) are uniformly distributed on the surface of TiO2 support where octahedrally coordinated NiO as active species is formed upon calcination. Among the catalysts prepared, 30NiO/TiO2 with strongest acidity and highest accessible surface area is found to be the most active in the acetylation of glycerol with acetic acid, achieving 90.2% glycerol conversion with 65.9% selective to TAG under non-microwave instant heating conditions (170 degrees C, 30 min). In addition, 30NiO/TiO2 also shows better catalytic performance than previous reported catalysts. No significant deterioration in catalytic activity is shown by 30NiO/TiO2 after eight successive runs, thus offering a green pathway for synthesizing TAG vehicle fuel additives with high selectivity.
| Item Type: | Article |
|---|---|
| Funders: | FRGS [203/PKIMIA/6711642], King Khalid University [R.G.P. 306/1442], Universiti Sains Malaysia, King Saud University |
| Uncontrolled Keywords: | NiO supported TiO2; Sol-gel method; Acetylation of glycerol; Non-microwave instant heating; Triacetyl glyceride fuel additive |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Jun 2022 05:02 |
| Last Modified: | 27 Jun 2022 05:02 |
| URI: | http://eprints.um.edu.my/id/eprint/34027 |
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