THE KEY ROLE OF HIGHLY DISPERSED RHODIUM IN THE CHEMISTRY OF HYDROGEN CERIA SYSTEMS

被引：41

作者：

BERNAL, S ^{[1
]}

CALVINO, JJ ^{[1
]}

CIFREDO, GA ^{[1
]}

RODRIGUEZIZQUIERDO, JM ^{[1
]}

PERRICHON, V ^{[1
]}

LAACHIR, A ^{[1
]}

机构：

[1] INST RECH CATALYSE,F-69626 VILLEURBANNE,FRANCE

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1992年 / 06期

关键词：

D O I：

10.1039/c39920000460

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the presence of rhodium, the H-2-CeO2 interaction is to a large extent reversible, simple evacuation of the reduced sample has been demonstrated to promote reoxidation of the support; this explains some puzzling effects of the reduction/evacuation treatments on the actual oxidation state of ceria in Rh-CeO2 catalysts.

引用

页码：460 / 462

页数：3

共 12 条

[1]

BARRAULT J, 1990, APPL CATAL, V57, P379

[2]

BERNAL S, IN PRESS J CATAL

[3]

CUNNINGHAM J, 1990, J MOL CATAL, V57, P269

[4] INDUCED CHANGES IN CERIA BY THERMAL TREATMENTS UNDER VACUUM OR HYDROGEN [J].

FIERRO, JLG ;

SORIA, J ;

SANZ, J ;

ROJO, JM .

JOURNAL OF SOLID STATE CHEMISTRY, 1987, 66 (01) :154-162

[5] INFLUENCE OF CHLORINE TOWARDS METAL-SUPPORT AND METAL-SULFUR SUPPORT INTERACTIONS [J].

GUENIN, M ;

DASILVA, PN ;

FRETY, R .

APPLIED CATALYSIS, 1986, 27 (02) :313-323

[6] REDUCTION OF CEO2 BY HYDROGEN - MAGNETIC-SUSCEPTIBILITY AND FOURIER-TRANSFORM INFRARED, ULTRAVIOLET AND X-RAY PHOTOELECTRON-SPECTROSCOPY MEASUREMENTS [J].

LAACHIR, A ;

PERRICHON, V ;

BADRI, A ;

LAMOTTE, J ;

CATHERINE, E ;

LAVALLEY, JC ;

ELFALLAH, J ;

HILAIRE, L ;

LENORMAND, F ;

QUEMERE, E ;

SAUVION, GN ;

TOURET, O .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (10) :1601-1609

[7] OXIDATION-STATE OF CERIUM IN CERIUM-BASED CATALYSTS INVESTIGATED BY SPECTROSCOPIC PROBES [J].

LENORMAND, F ;

HILAIRE, L ;

KILI, K ;

KRILL, G ;

MAIRE, G .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (09) :2561-2568

[8] STATES OF HYDROGEN ADSORPTION ON PLATINUM-ALUMINA AND PLATINUM-CERIA CATALYSTS - A TEMPERATURE-PROGRAMMED DESORPTION STUDY [J].

LEVY, PJ ;

PRIMET, M .

APPLIED CATALYSIS, 1991, 70 (02) :263-276

[9]

Meriaudeau P., 1982, STUD SURF SCI CATAL, V11, P95

[10]

PERRICHON V, 1975, PROGR VACUUM MICROBA, V5, P18

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