The use of temperature-programmed and dynamic/transient methods in catalysis: characterization of ceria-based, model three-way catalysts

被引：221

作者：

Boaro, M ^{[1
]}

Vicario, M ^{[1
]}

de Leitenburg, C ^{[1
]}

Dolcetti, G ^{[1
]}

Trovarelli, A ^{[1
]}

机构：

[1] Univ Udine, Dipartimento Sci & Tecnol Chim, I-33100 Udine, Italy

来源：

CATALYSIS TODAY | 2003年 / 77卷 / 04期

关键词：

temperature-programmed and dynamic/transient methods; catalysis; three-way catalysts; TPR; ceria; ceO2; oxygen storage;

D O I：

10.1016/S0920-5861(02)00383-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Temperature-programmed (TP) methods have been increasingly used in recent years for the characterization of catalytic materials under conditions similar to those encountered in commercial applications. A large variety of complementary TP techniques can be used with minimum variation of experimental conditions, thus allowing great characterization potential in a single apparatus. Modern analytical and numerical tools allow accurate analysis and modeling of TP profiles, to obtain kinetic and other reaction parameters. Here, we will briefly review the experimental TP methods used for the characterization of the reduction features and the dynamic behavior of oxygen-storage/redox components of auto exhaust catalysts, based mainly on CeO2 and ceria-zirconia. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：407 / 417

页数：11

共 52 条

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An FTIR study of surface ceria hydroxy groups during a redox process with H-2 [J].