Study of the Acid–Base Properties of Heterogeneous Catalysts by Infrared Spectroscopy

Abstract

The quantitative assessment of the acid–base properties of the surface of heterogeneous catalysts by i.r. spectral studies of adsorbed molecules is discussed. The quantities through which the protonic (Bronsted), aprotic (Lewis), acidic and basic centres of the surface can be most easily characterised are analysed. Reported methods of determining the number and strength of the surface centres are described. 135 references.