负载金催化剂Au/CeO_2的制备及其催化氧化性质表征  

Preparation of Au/CeO_2 Supported Gold and Characterization of Catalytic Oxidation

作　　者：邱永福[1] 兰善红[1] 范洪波[1] 

机构地区：[1]东莞理工学院化学与环境工程学院,广东东莞523808

出　　处：《东莞理工学院学报》2012年第5期58-63,共6页Journal of Dongguan University of Technology

基　　金：广东省自然科学基金(10451170003004186);东莞理工学院自然科学青年基金(2010ZQ12)

摘　　要：文中利用简单方法制备出高效的CeO2载体,并通过沉积-沉淀法成功制备出新型催化剂Au/CeO2;通过表征发现,500℃培烧出来的Au/CeO2催化剂对CO氧化活性最高。High efficient Ce02 carrier is prepared by a simple method and a new type of catalyst Au/CeO2 is successfully prepared by deposition-precipitation. By characterization, we find that Au/CeO2 catalyst calcined under 500C temperature is high- est activity for CO oxidation, because gold particle size is appropriate and valence state is also consistent with the requirements of ca- talysis. On the other hand, the synergy effect is obvious between gold particles and Ce02 on Au/CeO2 catalyst calcined under 500~C temperature.

关 键 词：金 催化剂 CO CEO2 

分 类 号：O643[理学—物理化学]