Effect of α-Fe2O3 morphology on NO reduction by CO

摘要：

Introduction The catalytic reduction of NO by CO is an essential process in the three-way catalytic converter used in abating automobile exhaust, where Pd, Pt and Rh-based noble metals act as the major catalytic components 1. Because of the high cost and limited available sources of precious metals, considerable efforts have been made to utilize transition metals and their oxides. Among them, iron oxides seem to be the most promising candidate. Density functional theory analyses have revealed that Fe2O3 clusters are excellent catalysts for CO oxidation and NO reduction 2, but experimental studies on Fe2O3 for NO+CO reaction are reported scarcely. Here, we examined α-Fe2O3 materials with different morphologies (fibrous-like and small nanosheets) for NO reduction by CO, and the fibrous-like α-Fe2O3 showed exceptionally high activity, similar to the precious metal-based catalysts.

作者: Xiaoling Mu Yong Li Xiumin Huang Wenjie Shen

作者单位: State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China

会议类型: 国际会议

会议名称: 6th International Conference on Environmental Catalysis(第六届国际环境催化大会 ICEC 2010)

会议地点: 北京

会议语种:英文

页码: 352-352

在线出版日期: 2010-09-12（万方平台首次上网日期，不代表论文的发表时间）