Correlation between catalytic activity of supported gold catalysts for carbon monoxide oxidation and metal–oxygen binding energy of the support metal oxides

作     者：Takashi Fujita Masanori Horikawa Takashi Takei Tom Murayama Masatake Haruta Takashi Fujita;Masanori Horikawa;Takashi Takei;Toru Murayama;Masatake Haruta

作者机构：首都大学东京城市环境科学研究生院应用化学系日本东京192-0397 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2016年第37卷第10期

页      面：1651-1655页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

主　　题：Metal oxide-supported gold nanoparticle catalyst Support effects Carbon monoxide oxidation Volcano-like correlation Metal-oxygen binding energy 

摘      要：The effect of a wide variety of metal oxide （MOx） supports has been discussed for CO oxidation on nanoparticulate gold catalysts. By using typical co‐precipitation and deposition–precipitation methods and under identical calcination conditions, supported gold catalysts were prepared on a wide variety of MOx supports, and the temperature for 50%conversion was measured to qualita‐tively evaluate the catalytic activities of these simple MOx and supported Au catalysts. Furthermore, the difference in these temperatures for the simple MOx compared to the supported Au catalysts is plotted against the metal–oxygen binding energies of the support MOx. A clear volcano‐like correla‐tion between the temperature difference and the metal–oxygen binding energies is observed. This correlation suggests that the use of MOx with appropriate metal–oxygen binding energies （300–500 kJ/atom O） greatly improves the catalytic activity of MOx by the deposition of Au NPs.