CuO/CeO2 supported on Zr doped SBA-15 as catalysts for preferential CO oxidation (CO-PROX)

被引：52
|
作者：
Reyes-Carmona, Alvaro [1 ]
Arango-Diaz, Ana [1 ]
Moretti, Elisa [2 ,3 ]
Talon, Aldo [2 ,3 ]
Storaro, Loretta [2 ,3 ]
Lenarda, Maurizio [2 ,3 ]
Jimenez-Lopez, Antonio [1 ]
Rodriguez-Castellon, Enrique [1 ]
机构：
[1] Univ Malaga, Fac Ciencias, Dept Quim Inorgan Cristalog & Mineral, Unidad Asociada ICP CSIC, E-29071 Malaga, Spain
[2] Univ Ca Foscari Venezia, INSTM, I-30172 Mestre Venezia, Italy
[3] Univ Ca Foscari Venezia, Dipartimento Chim, I-30172 Mestre Venezia, Italy
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 09期
关键词：
Hydrogen purification; Fuel cell; CO-PROX; CuO/CeO2; CARBON-MONOXIDE; H-2; XPS; PERFORMANCE; REDUCTION; KINETICS; STREAMS; EXCESS; OXIDES;
D O I：
10.1016/j.jpowsour.2010.10.019
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 application of the catalytic system CuO/CeO2 supported on Zr doped SBA-15 mesoporous silica to the preferential oxidation of CO on hydrogen streams (CO-PROX) suitable to be used to feed PEM fuel cells, has been studied. A loading of 20% (wt.) Ce and 6% (wt.) Cu was found optimal for the CO-PROX reaction. The influence of the presence of CO2 and H2O in the gas feed was also studied in order to simulate the real operation conditions of a PEMFC feed stream generated by alcohol steam reforming. The catalysts were characterized by XRD, adsorption-desorption of N-2 at -196 degrees C, TEM, -H-2-TPR and XPS. The system reducibility was found modified by the incorporation of zirconium in the support, with improvement of both the conversion and selectivity of the catalytic system, compared to the same material without Zr. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：4382 / 4387
页数：6
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