SPILLOVER EFFECTS IN CATALYSIS

This review paper deals with the intervention of spillover in differen t steps of heterogeneous catalysis: activation by spillover (site crea tion), surface reactions (remote and auto remote control) and reactivi ty of spilled-over species. It is shown that spillover is a phenomenon very often encountered in catalysis which offers easier pathways to a chieve a reaction (spillover assisted catalytic reactions). Applying t he concept of donor and acceptor helps scientists in this field to con ceive catalysts that are more active and/or more selective, and more r esistant to coking, i.e. with greater lifetime. The concept is useful at the research level as well as in applied industrial catalysis.