Catalyst design based on spillover theory

Effective dehydrogenation catalysts can be designed by preparing the exit of hydrogen desorption from catalyst surface (hydrogen reverse spillover). Catalyst deactivation is prevented by spillover of hydrogen or oxygen from gas phase by hydrogenating coke precursors or burning of the coke. On solid acid catalysts new acid sites are generated by hydrogen introduced from gas phase through spillover, which catalyzed isomerization, dehydration or cracking.