Co-promoted Pt catalysts supported on silica aerogel for preferential oxidation of CO

被引：42

作者：

Choi, Jinsoon ^{[2
]}

Shin, Chee Burm ^{[2
]}

Suh, Dong Jin ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Clean Technol Res Ctr, Seoul 136971, South Korea

[2] Ajou Univ, Dept Chem Engn, Suwon 442749, Kyunggi, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 05期

关键词：

PROX; CO oxidation; silica; aerogel; Pt; Co;

D O I：

10.1016/j.catcom.2007.09.036

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：

Pt and Co doped silica aerogels have been synthesized by sol-gel method and subsequent supercritical drying. Wet-gel state of silica was used in the adsorption process in order to accommodate Pt and Co. Catalytic activities for preferential oxidation of CO in H-2-rich fuels were measured in the temperature range from 25 degrees C to 300 degrees C. At 2500 ppm of carbon monoxide, COPt-SiO2 aerogels showed good activities in a wide range of temperatures maintaining less than 20 ppm at 125-250 degrees C. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：880 / 885

页数：6

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