Heterogeneous chemiluminescence of crystallophosphor catalysts in the CO+O mixture

The results of the study of stationary and relaxation characteristics of heterogeneous chemiluminescence (HCLCO+O) of such crystalophosphor catalysts as CaO-Bi and Zn2SiO4-Mn are presented. Chemiluminescence was excited by the products of the dissociation of the CO, CO2, or O-2 + CO + Ar mixture. The excitation of (HCLCO+O) generally follows the Eley-Rideal mechanism, that is O + CO-L --> CO2-L + h nu or CO + O-L --> CO2-L + h nu, where L denotes a lattice. The stepwise kinetic mechanism of HCLCO+O excitation is suggested. The cross-sections and quantum yields of CO oxidation on the surface of CaO-Bi and Zn2SiO4-Mn are determined.