Abstract
Abstract Since ESCA measurement reveals the chemical composition and oxidation states of atoms on the surface of solids [1], it provides a new probe for investigation in the field of catalysis. It has been widely used to investigate directly the surface structure and composition, mechanisms of reaction, poisoning and reactivation; composition activity performance correlationship, etc. ESCA on catalysts has been reviewed by several workers [2–71, but its use in supported catalysts has not received the attention of workers. In this review the potential applications of XPS on several supported catalysts are discussed.
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