Przemysl Chemiczny, Vol.88, No.7, 815-818, 2009
Application of stable isotopes of oxygen (O-16(2) and O-18(2)) and carbon (C-12 and C-13) for studying the complete catalytic oxidation of methane
Complete oxidn. of CH4 on Pd(PdO)/Al2O3 catalyst was studied by steady-state isotopic transient kinetic anal. The O-16(2), O-18(2), (CH4)-C-12 and (CH4)-C-13 mols. were used in the study. The concns. of adsorbed O, CH4 and CO2 mols. and their life times on the catalyst surface were detd. The Mars - van Krevelen mechanism of the reaction was confirmed. Participation of crystal network-contained O atoms in the oxidn. was also evidenced.