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

被引：57

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 [物理化学]; 081704 [应用化学];

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.

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收藏

页码：423 / 426

页数：4

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