Development of Membraneless Sodium Perborate Fuel Cell for Media Flexible Power Generation

Table 1

Theoretical open-circuit potential and maximum efficiency of various fuels.

Fuel	Reaction	𝑛 (e)	−Δ𝐻^∘ (kJ/mol)	−Δ𝐺^∘ (kJ/mol)	𝐸rev^∘ (V)	Maximum efficiency (%)
Ethanol	CH3CH2OH + 3O2 → 2CO2 + 3H2O	12	277.7	174.9	1.15	62.98
Hydrogen	H2 + 1/2 O2 → H2O	2	286	237.3	1.23	82.97
V^2+	V^2+ + VO^2+ + 2H^+ → V^3+ + VO^2+ + H2O	1	431.8	404.2	1.19	93.61
Methanol	CH3OH + 1/2 O2 → CO2 + 2H2O	6	726.6	702.5	1.21	96.68
Formic acid	HCOOH + 1/2 O2→ CO2 + 2H2O	2	270.3	285.5	1.48	105.6