Fig. 2 e The conversions, selectivities, SE and ECE in mode 1. [CH4/CO2 [ 4/6, input power [ 14.4 kW, the flow rate of CH4
and CO2 [ 2e5 m3/h]. (a) Conversions of CH4 and CO2, (b) Selectivities of H2 and CO, (c) Specific energy (SE), (d) Energy
conversion efficiency (ECE).