Fuel cells Load Chemical Rxn> Electricity HO Net:H2+1/202=H2O A: H2-2e=2H+ Ov C:2H++2e+1/202=H2O1.23 Desired voltage achieved by anode k cathode stacking cells(in series) 击00 Fuel reformer Natural gas, alcohol hydrocarbons→H2+CO H2(fuel 02(oxidant)Fuel Cells Chemical Rxn → Electricity: Net: H2 + 1/2O2 = H2O A: H2 - 2e- = 2H+ OV C: 2H+ + 2e- + 1/2O2 = H2O 1.23 V Desired voltage achieved by stacking cells (in series) Fuel reformer Natural gas, alcohol, hydrocarbons → H2 + CO anode cathode H2 (fuel) H2O O2 (oxidant) Separator (porous) Load