The connection between structure and reactivity in heterogeneous reactions can be best studied using model substrates whose structure can be characterized and controlled. Several examples of this approach to the understanding of structure-reactivity relationships in heterogeneous catalysis are presented, based on recent investigations of the Fe(100) surface. This surface exhibits a rich and complex chemistry, illustrated here by discussions of the adsorption and reaction of CO, O2, H2O, CH3OH and CH3SH on the clean and modified Fe(100) surface. An approach to the preparation of characterizable mixed metal oxide substrates based on the hydroxylated Fe(100) surface is also presented.
ASJC Scopus subject areas