Au@ZIF-8: CO Oxidation over Gold Nanoparticles Deposited to Metal−Organic Framework

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• 作者：Hai-Long Jiang ; Bo Liu ; Tomoki Akita ; Masatake Haruta ; Hiroaki Sakurai ; Qiang Xu
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：August 19, 2009
• 年：2009
• 卷：131
• 期：32
• 页码：11302-11303
• 全文大小：133K
• 年卷期：v.131,no.32(August 19, 2009)
• ISSN：1520-5126

文摘

Gold nanoparticles (NPs) were deposited to a zeolite-type metal−organic framework (MOF) by a simple solid grinding method. A catalyst, Au@ZIF-8, represents the first example of an active catalyst in CO oxidation by using a MOF as a novel support for noble metal NPs. The catalytic activity for CO oxidation is improved along with increasing Au loadings, and the highest catalytic activity is obtained for 5.0 wt % Au@ZIF-8, which presents half conversion of CO at 170 °C. Gold NPs are close to being monodisperse and have no aggregation during catalytic reaction, and the catalytic activity is reproducible.