Fig. 5: DFT calculations of NO and CH4 oxidation on Ru/CZO, Pd/CZO and RuPd/CZO catalysts.

Energy change diagram for catalytic NO oxidation to NO2 (a) and the first C-H bond dissociation of a CH4 molecule (b). Final energy of the first C-H bond dissociation in the presence/absence of O2 (c). The PDOS of Ru-4d orbital in Ru/CZO and RuPd/CZO (d). The PDOS of Pd-4d orbital in Pd/CZO and RuPd/CZO (e).