Carbon-Neutralized Direct Methanol Fuel Cell Using Bifunctional (Methanol Oxidation/CO₂ Reduction) Electrodes

Table 3

The F.E. of products and CO₂ conversion obtained from the two-electrode system with a Pt-Zn anode and a dendritic Pd-Ag cathode for electrochemical reduction of CO₂.

	CO	H2	CO2 conversion
Spontaneous operation (constant current mode, -20 mA/cm^2)	89.11%	9.83%	67.27%
-1.0 V applied	88.46%	10.51%	62.35%
-1.5 V applied	75.42%	24.17%	68.90%
-2.0 V applied	60.22%	39.67%	75.11%