Low-temperature water gas shift reaction over Pt-Re/TiO2 catalysts prepared by a sub-critical drying method

被引：16
|
作者：
Iida, Hajime [1 ]
Yonezawa, Kenichi [1 ]
Kosaka, Masaya [1 ]
Igarashi, Akira [1 ]
机构：
[1] Kogakuin Univ, Fac Engn, Dept Environm Chem Engn, Hachioji, Tokyo 1920015, Japan
来源：
CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 05期
关键词：
Water gas shift; Pt-Re/TiO2 (rutile); Sub-critical drying (SubCD); Pt dispersion; PT/TIO2; RUTILE; PT-RE; OXIDES;
D O I：
10.1016/j.catcom.2008.11.005
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：
In order to prepare a highly dispersed Pt-Re/TiO2 (R: rutile) catalyst with superior catalytic activity for the low-temperature water gas shift reaction (LT-WGS), the effect of the drying conditions after impregnation on the catalytic properties and activity of Pt-Re/TiO2(R) catalysts was examined. As a result, subcritical drying (SubCD), where the catalyst is dried under sub-critical conditions, was effective for the enhancement of Pt dispersion and for resisting Pt loss during the drying step. The SubCD catalyst prepared with Pt(C5H7O2)(2) exhibited superior catalytic activity for LT-WGS at 250 degrees C compared with that of a commercial Cu/Zn catalyst. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：627 / 630
页数：4
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