ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 1998,Vol.14>> Issue(09)>> 769-771     doi: 10.3866/PKU.WHXB19980901         中文摘要
Preparation of Highly Dispersive Supported Gold Catalyst by Microbial Reduction Method
Fu Jin-Kun, Liu Yue-Ying, Hu Rong-Zong, Zeng Jin-Long, Xu Pian-Pian, Lin Zhong-Yu, Yao Bing-Xin, Weng Cheng-Zhou
Department of Chemistry,State Key Laboratory for Physical Chemistry of the Solid Suurface,Department of Biology,Xiamen University,Xiamen 361005
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After widely screening, a kind of bacteria was obtained, which is easy to culture and has strong ability of reducing Au3+ to Au0. It was used to prepare the highly dispersive Au/a-Fe2O3catalyst by in situ reducing the Au3+ ions impregnated on α-Fe2O3 supporter to Au0 particles, with a mean size of 5 nm, under the condition of 28℃ and pH 4.5. The reductive degree ofAu3+ was up to 100%. This catalyst showed good catalytic property for the oxidation of carbon monoxide, the percent conversion of 1.5% CO, balanced with air was up to 100% under the condition of 2528℃and GHSV 500mL•h-1•g-1, and the percent conversion of 100% lasted for 75 h at 25 ℃.

Keywords: Reduction of Au3+ by bacteria   Gold catalyst   CO oxidation  
Received: 1998-05-27 Accepted: 1998-07-02 Publication Date (Web): 1998-09-15
Corresponding Authors: Fu Jin-Kun Email:

Cite this article: Fu Jin-Kun, Liu Yue-Ying, Hu Rong-Zong, Zeng Jin-Long, Xu Pian-Pian, Lin Zhong-Yu, Yao Bing-Xin, Weng Cheng-Zhou. Preparation of Highly Dispersive Supported Gold Catalyst by Microbial Reduction Method[J]. Acta Phys. -Chim. Sin., 1998,14 (09): 769-771.    doi: 10.3866/PKU.WHXB19980901
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