Characterization of termetallic Pt-Ir-Au catalysts for NO decomposition

作     者：Akira Morikawa Kohei Okumura Masaru Ishii Koichi Kikuta Akihiko Suda Hirofumi Shinjo 

作者机构：Catalyst Lab.Toyota Central R&D Labs.Inc.41-1 YokomichiNagakuteNagakute-ChoAichi-GunAichi 480-1192Japan Vehicle Engineering GroupMaterial Engineering Division ⅡToyota Motor Corporation1 Toyota-choToyotaAichi 471-8572Japan Department of Crystalline Materials ScienceSchool of EngineeringNagoya UniversityFuro-ChoChikusa-KuNagoyaAichi 464-8603Japan 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2011年第30卷第1期

页      面：53-57页

核心收录：

学科分类：081705[工学-工业催化] 0806[工学-冶金工程] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the members of the Catalyst Laboratory of Toyota Central R&D Labs.  Inc 

主　　题：catalysts iridium gold platinum decomposition nitrogen oxides 

摘      要：A termetallic catalyst of Pt-Ir-Au/Al2O3 for NOx decomposition was prepared by loading the metallic colloids in C2H5OH-H2O solution and a surfactant of polyvinyl *** with an impregnated Pt/Al2O3 catalyst,the termetallic catalyst of PtIrAu811/Al2O3,with a Pt：Ir：Au atomic ratio of 8：1：1,exhibited higher NO decomposition and selectivity to *** electron microscopy and X-ray diffraction were conducted to clarify the state of the supported metals and indicate three precious metals alloyed on the *** the study of NO-temperature programmed desorption,oxygen desorption on the PtIrAu811 catalyst shifted to the low temperature side compared to that on Pt/Al2O3,which correlated well with its higher catalytic performance in NO decomposition.