Appaturi, Jimmy Nelson and Ramalingam, Rajabathar Jothi and Al-Lohedan, Hamad A. and Khoerunnisa, Fitri and Ling, Tau Chuan and Ng, Eng-Poh (2021) Selective synthesis of dioxolane biofuel additive via acetalization of glycerol and furfural enhanced by MCM-41-alanine bifunctional catalyst. Fuel, 288. ISSN 0016-2361, DOI https://doi.org/10.1016/j.fuel.2020.119573.
Full text not available from this repository.Abstract
Highly active and selective acetalization catalyst, viz. alanine functionalized MCM-41 (MCM-41-16Alanine), synthesized using post-grafting method is reported. The mesoporous solid is first reacted with (3-chloropropyl) triethoxysilane (CPTES) before alanine is covalently bonded onto the hybrid support as confirmed by TGA/DTG, IR and UV-Raman spectroscopy analyses. Furthermore, the meso-ordered structure of MCM-41 is also retained after surface modification as revealed by the X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) studies. The resulting bifunctional catalyst bearing both acidity and basicity exhibits good catalytic performance in the acetalization of glycerol with furfural reaction where 90% conversion with 78% selective to (2-(furan-2-yl)-1,3-dioxolan-4-yl)methanol-a valuable dioxolane biofuel additive-are achieved under optimized reaction conditions. Furthermore, the excellent catalytic performance of MCM-41-16Alanine is demonstrated when it is compared to other reported catalysts thanks to its large surface area, acid-base bifunctionality and mesopore confinement that induce synergistic effects. The catalyst also displays high catalyst reusability and no significant deterioration in catalytic activity is shown after six consecutive runs, thus offering a green pathway for synthesizing dioxolane biofuel additive with high selectivity.
| Item Type: | Article |
|---|---|
| Funders: | FRGS [203/PKIMIA/6711642], Universiti Sains Malaysia, King Saud University |
| Uncontrolled Keywords: | Alanine functionalized MCM-41; Acid-base bifunctional catalyst; Acetalization of glycerol with furfural; Biofuel additive; Dioxolane |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 15 Aug 2022 04:20 |
| Last Modified: | 15 Aug 2022 04:20 |
| URI: | http://eprints.um.edu.my/id/eprint/28521 |
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