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金催化作用的结构敏感性(英文) 被引量:1

Structure-Sensitivity of Au Catalysis
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摘要 金催化是纳米催化的代表性体系,金催化作用表现出复杂的结构敏感性。这篇综述总结了金催化作用研究的文献结果和我们利用从单晶到纳米晶的模型催化剂研究金催化作用的进展。展示了NO分解,CO氧化,丙烯在氢气和氧气气氛中环氧化等反应中金催化作用的结构敏感性和金催化剂的活性结构,讨论了金纳米粒子几何结构和电子结构、金纳米粒子–氧化物载体相互作用对金催化作用的影响和金表面低温高催化活性的来源,并展望了金催化作用结构敏感性的未来研究方向。 Au catalysis is representative of nanocatalysis. Au catalysis has been demonstrated to be very complex and structure-sensitive. In this short review we summarize the literature reports on Au catalysis and our recent progress on the fundamental understanding of Au catalysis using model catalysts from single crystals to nanocrystals. We demonstrate the structure-sensitivity of Au catalysis used for NO decomposition, CO oxidation, and propylene epoxidation with H2 and 02 and the corresponding active Au structures. We discuss the effects of the geometric and electronic structures and the Au-oxide support interactions on Au catalysis, and the origin of high catalytic activity of the Au surface at low temperatures. Finally, we provide an outlook for future research directions of structure-sensitive Au catalysis.
出处 《物理化学学报》 SCIE CAS CSCD 北大核心 2016年第1期48-60,共13页 Acta Physico-Chimica Sinica
基金 The project was supported by the National Key Basic Research Program of China(973)(2013CB933104) National Natural Science Foundation of China(21525313,20973161,21373192) MOE Fundamental Research Funds for the Central Universities,China(WK2060030017) MPG-CAS Partner Group Program and Collaborative Innovation Center of Suzhou Nano Science and Technology~~
关键词 表面化学 多相催化 模型催化剂 CO氧化反应 NO分解反应 丙烯环氧化反应 Surface chemistry Heterogeneous catalysis Model catalyst CO oxidation reaction NO decomposition reaction Propylene epoxidation reaction
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