Structure and catalytic transformations of lower hydrocarbons on single-crystal surfaces of transition metals

Abstract

Investigations of the structure and temperature evolution of adsorbed lower allphatic hydrocarbons on single-crystal surfaces of transition metals are reviewed in connection with the mechanisms of concrete heterogeneous catalytic processes on these surfaces. The great number of experimental techniques For study of the surface processes, developed during the last 15 years and use of single-crystal surfaces gives new opportunities for elucidation and solution the various problems in heterogeneous catalysis. Some of the achievements in determination of the structure of ethene and ethyne adsorption complexes are presented. Mechanisms of the alkane hydrogenolysis and alkene hydrogenation are discused in the light of the results from kinetic, spectral and quantum-chemical investigations. Some speculations about perspective directions in this field are mentioned.