L1 /
16
CH3041
HYDROGEN FUEL CELL
Power
station versions
650oC, 40 atm.
650oC, 40 atm.
• Car versions 80oC,
H+ exchange membrane
(electrolyte function)
H+ exchange membrane
(electrolyte function)
• Advantages: clean, high fuel value 142 kJ/g.
• Disadvantages: low energy density fuel,
storage is a major problem for cars .
storage is a major problem for cars .
• Ecell = 1.23V
• H2(g) + CO32-(l) ® H2O(g) + CO2(g) + 2e-
½O2(g) + CO2(g) + 2e- ® CO32-(l)
net reaction H2(g) + ½ O2(g) ® H2O(g)
