文献类型：期刊文献

英文题名：Catalytic combustion of chlorobenzene over Ru-doped ceria catalysts

作者：Dai, Qiguang[1];Bai, Shuxing[1];Wang, Zhengyi[1];Wang, Xingyi[1];Lu, Guanzhong[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Adv Mat Lab, Shanghai 200237, Peoples R China

年份：2012

卷号：126

起止页码：64

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20123715428568);WOS:【SCI-EXPANDED(收录号:WOS:000309692900008)】；

基金：The authors would like to thank Wei Deng for preparing TEM and HRTEM samples. This research was supported by National Basic Research Program of China (Nos. 2010CB732300, 2011AA03A406), National Natural Science Foundation of China (No. 20977029) and Commission of Science and Technology of Shanghai Municipality (11JC1402900).

语种：英文

外文关键词：Chlorobenzene; Ceria; Ru; Catalytic combustion; Chlorinated hydrocarbons

摘要：CeO2 and Ru doped CeO2 nanoparticles with small particle sizes (similar to 7 nm) and high surface area (similar to 100 m(2) g(-1)) were prepared by a simple precipitation/coprecipitation method and aqueous NaOH solution (10 wt%) as the precipitating agent, and characterized by XRD, N-2 adsorption, TEM/HRTEM, Raman, XPS and H-2-TPR. The catalytic combustion of chlorobenzene (CB) was investigated for the first time. The results revealed that the Ru doped CeO2 catalysts exhibit an outstanding catalytic activity (T-90% below 250 degrees C) and stability (at least 82 h at 275 degrees C) for CB decomposition. The better stability of the Ru-CeO2 catalysts can be ascribed to the inorganic chlorine species or dissociative Cl adsorbed on active sites can be removed rapidly via the Deacon process catalysized by RuO2 component with extraordinary stability (limited chlorination and easier Cl-2 evolution). (c) 2012 Elsevier B.V. All rights reserved.