Hydrogen (or a hydrogen-
containing fuel) and air are fed into the anode and
cathode of the fuel cell, and the electrochemical reactions
assisted by catalysts take place at the electrodes [8]. The
electrolyte enables transport of ions between the electrodes
while the excess electrons flow through an external circuit
to provide electrical power. Fuel cells are classified according
to the nature of their electrolyte, which also determines
their operating temperature, the type of fuel and a
range of applications [9]. The electrolyte can be acid, base,
salt or a solid ceramic or polymeric membrane that conducts
ions.