Figure 3

(A) SVUV-PIMS spectra of the gas-phase components of OCM reaction catalyzed by 5.6%-Li/MgO at 750°C ionized with photons at different energies. (B) Integrated SVUV-PIMS peak intensity of gas-phase methyl radicals, ethylene and ethane during OCM reaction catalyzed by 5.6%-Li/MgO at 650, 700 and 750°C.