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Selective Oxidation of Glycerol to Glyceric Acid in Base-Free Aqueous Solution at Room Temperature Catalyzed by Platinum Supported on Carbon Activated with Potassium Hydroxide.
- Source :
- ChemCatChem; May2016, Vol. 8 Issue 9, p1699-1707, 9p
- Publication Year :
- 2016
-
Abstract
- Pt supported on KOH-activated mesoporous carbon (K-AMC) was used to catalyze glycerol oxidation under base-free conditions at room temperature. To study the relationship between the carbon surface chemistry and the catalytic performance of the K-AMC-based Pt catalysts, different levels of surface oxygen functional groups (SOFGs) on the AMC supports were induced by thermal treatment at different temperatures under inert or H<subscript>2</subscript> gas. A strong effect of the surface chemistry was observed on AMC-supported Pt catalysts for glycerol oxidation. The presence of carboxylic acid groups impedes the adsorption of glycerol, which leads to the reduction of catalytic activity, whereas the presence of high-desorption-temperature SOFGs, such as phenol, ether, and carbonyl/quinone groups, provide hydrophilicity to the carbon surface that improves the adsorption of glycerol molecules on Pt metal surface, which is beneficial for the catalytic activity. [ABSTRACT FROM AUTHOR]
- Subjects :
- GLYCERIN
OXIDATION
AQUEOUS solutions
POTASSIUM hydroxide
SURFACE chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 18673880
- Volume :
- 8
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- ChemCatChem
- Publication Type :
- Academic Journal
- Accession number :
- 115247664
- Full Text :
- https://doi.org/10.1002/cctc.201600052