Peroxide Anions as Possible Active Species in Oxidative Coupling of Methane

Abstract
Oxidative coupling of CH4 forming C2H6 and C2H4 proceeded smoothly upon contact with Na2O2, BaO2, and SrO2 at low temperatures below 673 K. This indicates that O22− ions are very reactive for activation of CH4. O2− ions contained in the peroxides did not activate CH4.