Several samples of m-ZrO2, characterized by different degrees of sinterization, were studied by FTIR and computer graphics. Crystallites of m-ZrO2 fired at high temperatures present a fairly regular termination, mostly along the (111) plane. When highly dehydrated, these materials adsorb CO in an ordered way, forming various CO clusters characterized by different degree of dipole-dipole interaction. If CO2 is pre-adsorbed, surface carbonate-like species are formed which interrupt the ordered formation of CO clusters and the extent of the surface dipole-dipole interactions.

A surface study of monoclinic ZrO2

CERRATO, Giuseppina;BORDIGA, Silvia;MORTERRA, Claudio
1997

Abstract

Several samples of m-ZrO2, characterized by different degrees of sinterization, were studied by FTIR and computer graphics. Crystallites of m-ZrO2 fired at high temperatures present a fairly regular termination, mostly along the (111) plane. When highly dehydrated, these materials adsorb CO in an ordered way, forming various CO clusters characterized by different degree of dipole-dipole interaction. If CO2 is pre-adsorbed, surface carbonate-like species are formed which interrupt the ordered formation of CO clusters and the extent of the surface dipole-dipole interactions.
377-379
50
55
CO/CO2 adsorption; Monoclinic ZrO2; Surface structure.
G. Cerrato; S. Bordiga; S. Barbera; C. Morterra
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/57080
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