Enhanced activity of Ba-doped Ir/SiO2 catalyst for NO reduction with CO in the presence of O2 and SO2

被引：43
|
作者：
Haneda, Masaaki
Kudo, Haruko
Nagao, Yukinori
Fujitani, Tadahiro
Hamada, Hideaki
机构：
[1] AIST, Res Inst Innovat Sustainable Chem, Tsukuba, Ibaraki 3058565, Japan
[2] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan
来源：
CATALYSIS COMMUNICATIONS | 2006年 / 7卷 / 07期
关键词：
selective reduction of NO; CO; Ir/SiO2; alkaline earth metal;
D O I：
10.1016/j.catcom.2005.12.020
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of metal additives on the catalytic performance of Ir/SiO2 catalyst for the selective reduction of NO with CO in the presence of O-2 and SO2 was investigated. Among the 19 additives tested here, the addition of barium was the most effective to enhance the activity of Ir/SiO2 at low temperature and low SO, concentration. Catalyst characterization suggested that barium prevents catalyst deactivation as an oxidation-retardant for the active Ir metal supported on SiO2 (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：423 / 426
页数：4
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