Low-temperature activity for CO oxidation over diesel oxidation catalysts studied by High Throughput Screening and DRIFT spectroscopy

被引：11

作者：

Becker, Elin ^{[1
]}

Thormahlen, Peter

Maunula, Teuvo

Suopanki, Aslak

Skoglundh, Magnus

机构：

[1] Chalmers, Competence Ctr Catalysis, SE-41296 Gothenburg, Sweden

[2] Ecocat Oy, Prod Dev, FIN-90650 Oulu, Finland

来源：

TOPICS IN CATALYSIS | 2007年 / 42-43卷 / 1-4期

关键词：

CO oxidation; diesel oxidation catalysts; Pt/CeO2; water-gas shift; formate;

D O I：

10.1007/s11244-007-0217-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We have investigated the low-temperature activity for CO oxidation for a series of platinum catalysts supported on Al2O3, TiO2, ZSM-5, CeO2 and ZrO2-CeO2. The results show major differences in activity, due to the support for Pt, especially in the presence of water. Improved activity over ceria containing samples in presence of water is likely due to the water-gas shift (WGS) reaction. Studies with in situ IR spectroscopy suggest a surface formate mechanism for the WGS reaction on Pt/CeO2.

引用

页码：421 / 424

页数：4

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