DEACTIVATION OF CARBON-SUPPORTED PLATINUM CATALYSTS DURING OXIDATIONS IN AQUEOUS-MEDIA

被引：0
|
作者：
VLEEMING, JH
DEBRUIJN, FA
KUSTER, BFM
MARIN, GB
机构：
来源：
CATALYST DEACTIVATION 1994 | 1994年 / 88卷
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D O I：
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中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The platinum catalyzed selective oxidation reactions of ethanol en methyl-alpha-D glucopyranoside (MGP) were studied in combination with catalyst characterization using Transmission Electron Microscopy (TEM), CO chemisorption, cyclic voltammetry and open-circuit potential measurements. Some evidence for catalyst deactivation by over-oxidation, leaching, platinum particle growth and site coverage is presented. The absence of deactivation observed for ethanol can be attributed to the higher reducing ability of ethanol.
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页码：467 / 474
页数：8
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