The effect of the morphological characteristics of TiO2 supports on the reverse water-gas shift reaction over Pt/TiO2 catalysts

被引：125

作者：

Kim, Sung Su ^{[1
]}

Lee, Hyun Hee ^{[1
]}

Hong, Sung Chang ^{[1
]}

机构：

[1] Kyonggi Univ, Grad Sch, Dept Environm Energy Syst Engn, Suwon 442760, Gyeonggi Do, South Korea

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2012年 / 119卷

关键词：

Pt; TiO2; CO2; RWGS; SMSI; NOBLE-METAL CATALYSTS; PERFORMANCE; HYDROGEN; PD;

D O I：

10.1016/j.apcatb.2012.02.023

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 effect of the morphological characteristics of a TiO2 support on the reverse water-gas shift reaction over Pt/TiO2 catalysts was examined. The activity of Pt catalysts with 6 different types of TiO2 supports varied during the reverse water-gas shift reaction. Analysis using H-2 Temperature Programmed Reduction (TPR) and Temperature Programmed Desorption (TPD) confirmed that the active sites of the Pt/TiO2 catalyst included both the Pt sites and the TiO2 sites, which were reducible, and the difference in the activity of the Pt/TiO2 catalysts was dependent on the reducibility of the TiO2 supports. X-ray diffraction (XRD) analysis showed that the TiO2 crystallite size was a key factor that dictated the reducibility of the TiO2 sites. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：100 / 108

页数：9

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