Mechanism of CO-formation promotion by Au in plasma-catalytic oxidation of CH over Au/γ-AlO at room temperature.

The plasma-catalytic oxidation of methane (CH) is a potential reaction for controlling CH emissions at low temperatures. However, the mechanism of the CH plasma-catalytic oxidation is still unknown, which inhibits the further optimization of the oxidation process. Herein, a CH oxidation mechanism over an Au/γ-AlO catalyst was proposed based on our experimental findings.