| 초록 |
The oxidation of methane, driven by electrochemical potential, is desirable as a strategy to overcome the low selectivity in thermochemical catalytic reactions, but improving productivity remains a challenge. We demonstrate the electrochemical conversion of methane to methanol in a CuO-CeO2 oxide catalyst. We confirm the highest methane oxidation activity at Cu:Ce=6:4. We achieve the highest production rate of 752.9 μmol/gcat/hr (6 hr reaction) at ambient pressure; Among the oxygenates, a CH3OH selectivity of 79% is obtained. In a high pressure reaction at 10 bar, productivity of 1,832.2 μmol/gcat/hr and 21,986.6 μmol/gcat is achieved. We confirm the formation of methanol by oxidation of methane by active oxygen on the catalyst, and also present a side reaction pathway by further oxidation of methanol. |
