Low Temperature CO Oxidation over Unsupported Nanoporous Gold

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• 作者：Caixia Xu ; Jixin Su ; Xiaohong Xu ; Pengpeng Liu ; Hongjuan Zhao ; Fang Tian ; and ; Yi Ding
• 刊名：Journal of the American Chemical Society
• 出版年：2007
• 出版时间：January 10, 2007
• 年：2007
• 卷：129
• 期：1
• 页码：42 - 43
• 全文大小：131K
• 年卷期：v.129,no.1(January 10, 2007)
• ISSN：1520-5126

文摘

Supported Au nanoclusters are well-known for their unusual properties in catalysis. We describe here that nanostructured porous Au made via dealloying represents a new class of unsupported catalysts with extraordinary activities in important reactions such as CO oxidation. Although nanoporous Au may contain some oxides on the surface, our results demonstrate that it is metallic Au that plays the main role in this catalytic reaction. Furthermore, this material has good low-temperature catalytic stability and is extremely CO tolerant.