Soot Oxidation with Ir-based Catalysts in the Presence of O2 and NO
The soot oxidation with Ir-based catalysts was investigated using simulated diesel exhaust gases. By comparing with Pt/ SiO2, Ir/SiO2 showed similarly catalytic activity and high CO selectivity. The effect of Ir content on the catalytic activity and CO selectivity was examined. With the increasing of Ir content in the range examined (from zero to 5％ ) , the catalytic activity increased and the CO selectivity decreased. Furthermore, the effect of support oxides was obtained; the catalytic activity was Ir/ZSM-5＞Ir/SiO2＞Ir/γ-Al2O3 and the CO selectivity was Ir/ZSM-5＜Ir/γ-Al2O3＜Ir/SiO2.
soot oxidation Ir-based catalysts NO
ZHU Rong-shu GUO Ming-xin CI Xin-bo OUYANG Feng
Environmental Science and Engineering Research Center,Shenzhen Graduate School, Harbin Institute of Technology,Shenzhen 518055, China
国际会议
北京
英文
163-164
2006-08-03（万方平台首次上网日期，不代表论文的发表时间）