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VOx Nanoclusters on CePO4 Nanowires for Oxidative Desulfurization of Thiophene.
- Source :
- ACS Applied Nano Materials; 11/25/2022, Vol. 5 Issue 11, p16612-16619, 8p
- Publication Year :
- 2022
-
Abstract
- Aerobic oxidative desulfurization (AODS) promises to be a sustainable alternative technology for diesel desulfurization, which necessitates the efficient aerobic oxidation of thiophenic sulfides at mild conditions. Here we synthesize cerium phosphate (CePO<subscript>4</subscript>) nanowire-supported vanadium oxide (VO<subscript>x</subscript>) nanoclusters, controllably creating coordination-unsaturated V sites for boosting the AODS reaction. We propose that the electron transfer from a Ce species to a V site gives rise to the donor state and enhances its electron-donating capability for the activation of O<subscript>2</subscript>. We show that the catalyst possesses a higher specific activity than state-of-the-art vanadium oxide catalysts, activates reaction at 90 °C (5.17 mmol g<superscript>–1</superscript> h<superscript>–1</superscript>), and achieves rapid conversion of various thiophenes under mild conditions. The catalyst demonstrates excellent durability in six cycles of reuse by maintaining an unchanged catalytic performance, a chemical structure, and a physical structure and is expected to act as a sustainable, efficient, and stable AODS catalyst. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 25740970
- Volume :
- 5
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- ACS Applied Nano Materials
- Publication Type :
- Academic Journal
- Accession number :
- 160477994
- Full Text :
- https://doi.org/10.1021/acsanm.2c03674