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Titolo:
IN-SITU ACTIVE-SITE FORMATION IN CO OXIDATION ON ALUMINA
Autore:
GALLARDO S; AIDA T; NIIYAMA H;
Indirizzi:
DE LA SALLE UNIV,DEPT CHEM ENGN,2401 TAFT AVE MANILA PHILIPPINES TOKYO INST TECHNOL,DEPT CHEM ENGN,MEGURO KU TOKYO 152 JAPAN
Titolo Testata:
Research of chemical intermediates
fascicolo: 4, volume: 24, anno: 1998,
pagine: 401 - 410
SICI:
0922-6168(1998)24:4<401:IAFICO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON DEPOSITION; CATALYSTS; METHANE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
S. Gallardo et al., "IN-SITU ACTIVE-SITE FORMATION IN CO OXIDATION ON ALUMINA", Research of chemical intermediates, 24(4), 1998, pp. 401-410

Abstract

For the development of automotive catalysts which may fit the condition of developing countries, catalytic activity of alumina for CO oxidation was studied. It was proposed that the carbon formed in-situ actedas an active site for CO oxidation. The carbon active site was also checked by methanol oxidation on alumina which showed temperature hysteresis during consecutive heating and cooling operations. Alkali-treated Alumina did not show any indication of the temperature hysteresis. The optimal temperature for maximum carbon depostion was confirmed by thermogravimetric analysis to be 450 - 500 C, which well explains the hysteresis. CeO2-Al2O3 showed remarkably higher activities for completeoxidation. It seems that alumina has reasonably satisfactory activityin total clean-up of exhaust gas.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 20:08:10