Hydrogen fuel cells that operate at lower temperatures use more expensive platinum electrode catalysts.
What helps to make up for the higher-cost electrodes?
a) They use a cheaper fuel.
b) They operate at a higher efficiency.
c) They use a reaction that is not redox.
d) They produce fewer emissions.
The expensive electrode catalysts like platinum are more efficient and are inert in nature. They can be used again and again and provides better surface for any reaction.
