Selective CO oxidation over CuO-CeO2 catalysts prepared via the urea-nitrate combustion method

被引：559

作者：

Avgouropoulos, G

Ioannides, T ^{[1
]}

机构：

[1] Fdn Res & Technol Hellas, Inst Chem Engn & High Temp Chem Proc, GR-26500 Patras, Greece

[2] Univ Patras, Dept Chem Engn, GR-26500 Patras, Greece

来源：

APPLIED CATALYSIS A-GENERAL | 2003年 / 244卷 / 01期

关键词：

selective CO oxidation; hydrogen; copper oxide; cerium oxide; urea; combustion method;

D O I：

10.1016/S0926-860X(02)00558-6

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：

CuO-CeO2 catalysts have been proposed as a promising candidate catalytic system for CO removal from reformed fuels via selective oxidation. In this work, the performance of CuO-CeO2 catalysts, synthesized via the urea-nitrate combustion method, in the reaction of selective CO oxidation in the presence of H-2 has been investigated. The combustion method was found to be a simple and fast route for the synthesis of ultrafine, nanocrystalline CuO-CeO2 catalysts. The influence of the fuel/oxidant (urea/nitrate) ratio and the Cu content on the catalytic properties of CuO-CeO2 catalysts has been studied and optimal values of these parameters have been determined. Compared to CuO-CeO2 catalysts prepared with other techniques, the catalysts prepared via the combustion method exhibited similar catalytic performance, remaining very active and stable, remarkably selective and with good tolerance towards CO2 and H2O. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：155 / 167

页数：13

共 59 条

[1] HYDROGEN-PRODUCTION BY THE CATALYTIC STEAM REFORMING OF METHANOL .1. THE THERMODYNAMICS [J].