期刊
CATALYSIS COMMUNICATIONS
卷 26, 期 -, 页码 15-18出版社
ELSEVIER
DOI: 10.1016/j.catcom.2012.04.025
关键词
CO oxidation; Noble metal; Layered double hydroxide
资金
- National Nature Science Foundation of China [21073059]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT0825]
- Fundamental Research Funds for the Central Universities [WK1013001]
A LDH confined Au nano-catalyst has been successfully synthesized through a flocculation and in-situ reduction method. In this composite, Au nano-colloids were evenly dispersed in LDH gallery and its particle size was less than 1 nm. The highly dispersed gold nano-colloids in layered Mg-Al double hydroxide support were found to be a high performance catalyst for CO lower temperature oxidation. The catalytic experiments indicated that the CO oxidation reaction could be initiated at lower than -30 degrees C and almost a 100% conversion can be achieved at 0 degrees C. The catalyst stability studies show that after 12 h reaction at 0 degrees C; the CO conversion has not any apparent decrease. (C) 2012 Elsevier B.V. All rights reserved.
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