Heat dissipation in exothermic reactions on non-traditional supported catalysts

Employing modern fabrication technologies, one can prepare catalysts consisting of nm metal crystallites deposited on mum oxide particles located on a planar oxide or metal support. We derive general equations for estimation of the time scales characterizing dissipation of heat released in exothermic reactions occurring on such catalysts. Using the results obtained, we show that in such systems overheating of oxide particles is usually negligible.