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Titolo:
SYNTHESIS AND CHARACTERIZATION OF PLATINUM-RHODIUM SUPPORTED ON SIC AND SIC DOPED WITH CERIUM - CATALYTIC ACTIVITY FOR THE AUTOMOBILE EXHAUST REACTIONS
Autore:
CUONG PH; MARIN S; LEDOUX MJ; WEIBEL M; EHRET G; BENAISSA M; PESCHIERA E; GUILLE J;
Indirizzi:
UNIV STRASBOURG 1,EHICS,CHIM MAT CATALYT LAB,1 RUE BLAISE PASCAL F-67070 STRASBOURG FRANCE UNIV STRASBOURG 1,EHICS,CHIM MAT CATALYT LAB,1 RUE BLAISE PASCAL F-67070 STRASBOURG FRANCE UNIV STRASBOURG 1,CNRS,LERCSI F-67070 STRASBOURG FRANCE IPCMS,GSI,CNRS,UMR 46 F-67037 STRASBOURG FRANCE EHICS,IPCMS,GMI,UMR 46 F-67037 STRASBOURG FRANCE
Titolo Testata:
Applied catalysis. B, Environmental
fascicolo: 1, volume: 4, anno: 1994,
pagine: 45 - 63
SICI:
0926-3373(1994)4:1<45:SACOPS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRON-MICROSCOPY; PT-CEO2AL2O3 CATALYSTS; CARBON-MONOXIDE; SURFACE-AREA; OXIDATION; ALUMINA; OXYGEN; OXIDE; REACTIVITY; STABILITY;
Keywords:
CATALYST CHARACTERIZATION (BET EDS TEM XRD XRF); CERIUM; DEACTIVATION; EXHAUST; PLATINUM; RHODIUM; SIC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
P.H. Cuong et al., "SYNTHESIS AND CHARACTERIZATION OF PLATINUM-RHODIUM SUPPORTED ON SIC AND SIC DOPED WITH CERIUM - CATALYTIC ACTIVITY FOR THE AUTOMOBILE EXHAUST REACTIONS", Applied catalysis. B, Environmental, 4(1), 1994, pp. 45-63

Abstract

The synthesis, characterization and catalytic use of SiC and SiC doped with cerium as Pt-Rh support for the automobile exhaust reaction aredescribed. Their resistance during two accelerated deactivation processes in the presence of water vapour at high temperature was also tested. The supports and the catalysts were characterized by mercury porosimetry, single point B.E.T., X-ray fluorescence, X-ray diffraction (XRD), transmission electronic microscopy (TEM) and X-ray energy dispersive spectroscopy (EDS) and their catalytic activities were measured in a synthetic exhaust containing carbon monoxide, nitric oxide, hydrocarbons and nitrogen. From the results it can be concluded that SiC can replace the wash-coat of alumina on cordierite as support. The presenceof cerium in the SiC support allows a good dispersion of the metal particles and confers high resistance towards sintering. In addition, the chemical inertness of the SiC support allows easy recovery of the active phase and the support by acid washing.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:15:35