MICROCALORIMETRIC STUDY OF THE ACIDITY AND BASICITY OF METAL-OXIDE SURFACES

被引：434

作者：

AUROUX, A

GERVASINI, A

机构：

[1] Institut de Recherches sur la Catalyse, Laboratoire Propre du CNRS, Associé a l'Université Claude Bernard Lyon I, 69626 Villeurbanne Cedex

[2] Eniricerche, 20097 S. Donato Milanese, Milano

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 16期

关键词：

D O I：

10.1021/j100379a041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of probe molecules such as NH3 and CO2 was studied on about 20 simple metallic oxides by use of microcalorimetry in order to determine the number and character of basic and acidic surface sites. Microcalorimetry allowed a simultaneous determination of the strength and energy distribution of the adsorption sites. The adsorption isotherms, the differential heats, the integral heats, and the energetic histograms are given for NH3 and CO2 adsorptions. Relationships between the average adsorption heats of NH3 and CO2 have been found as a function of the ionic character percentage and of the charge/radius ratio. © 1990 American Chemical Society.

引用

页码：6371 / 6379

页数：9

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