Modelling catalyst-support interactions in carbon monoxide oxidation catalysed by Pd/SnO₂

TY - JOUR

T1 - Modelling catalyst-support interactions in carbon monoxide oxidation catalysed by Pd/SnO2

AU - Sheintuch, M.

AU - Schmidt, J.

AU - Lecthman, Y.

AU - Yahav, G.

PY - 1989

Y1 - 1989

N2 - Stania-supported palladium shows a strong synergistic effect in catalysing carbon monoxide oxidation: measurements in the temperature range 20-160°C showed that the reactant inhibition effect and the activation energy of this catalyst are significantly lower than those of silica- and alumina-supported palladium. The rate curve is monotonic under stoichiometric conditions whereas it exhibits a local maximum in excess of oxygen. These features are accounted for by a model that incorporates spillover of carbon monoxide from the metal to the support and its subsequent reaction there. The support accelerates the rate by reducing the coverage of the metal by carbon monoxide.

AB - Stania-supported palladium shows a strong synergistic effect in catalysing carbon monoxide oxidation: measurements in the temperature range 20-160°C showed that the reactant inhibition effect and the activation energy of this catalyst are significantly lower than those of silica- and alumina-supported palladium. The rate curve is monotonic under stoichiometric conditions whereas it exhibits a local maximum in excess of oxygen. These features are accounted for by a model that incorporates spillover of carbon monoxide from the metal to the support and its subsequent reaction there. The support accelerates the rate by reducing the coverage of the metal by carbon monoxide.

UR - http://www.scopus.com/inward/record.url?scp=0024960233&partnerID=8YFLogxK

U2 - 10.1016/S0166-9834(00)81421-9

DO - 10.1016/S0166-9834(00)81421-9

M3 - 文章

AN - SCOPUS:0024960233

SN - 0166-9834

VL - 49

SP - 55

EP - 65

JO - Applied Catalysis

JF - Applied Catalysis

IS - 1

ER -