4.7 Article

Comparative study of CeO2/CuO and CuO/CeO2 catalysts on catalytic performance for preferential CO oxidation

期刊

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 38, 期 9, 页码 3597-3605

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.01.030

关键词

CeO2/CuO; CuO/CeO2; Hydrogen; Preferential CO oxidation

资金

  1. National Natural Science Foundation of China [21066004, 21061008]
  2. Natural Science Foundation of Inner Mongolia [2010BS0202]

向作者/读者索取更多资源

The CeO2/CuO and CuO/CeO2 catalysts were synthesized by the hydrothermal method and characterized via XRD, SEM, H-2-TPR, HRTEM, XPS and N-2 adsorption-desorption techniques. The study shows that the rod-like structure is self-assembled CeO2, and both hydrothermal time and Ce/Cu molar ratio are important factors when the particle-like CeO2 is being self-assembled into the rod-like CeO2. The CuO is key active component in the CO-PROX reaction, and its reduction has a negative influence on the selective oxidation of CO. The advantage of the inverse CeO2/CuO catalyst is that it still can provide sufficient CuO for CO oxidation before 200 degrees C in the hydrogen-rich reductive gasses. The traditional CuO/CeO2 catalyst shows better activity at lower temperature and the inverse CeO2/CuO catalysts present higher CO2 selectivity when the CO conversion reaches 100%. The performance of mixed sample verifies that they might be complementary in the CO-PROX system. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据