What is the material of the fuel cell electrode?
May be the graphite is not easy to carry out the reaction, and with other electrodes (such as platinum) can be carried out smoothly, which is a lot of theoretically feasible fuel cell, in fact, it is not easy to put into practice one of the reasons.
To have a catalytic effect, to reduce the reaction conditions to improve the reaction speed so that the reaction can proceed smoothly, of course, the graphite electrode is the cheapest.
Fuel cell electrode requirements that can not participate in the work of the reaction is consumed and have considerable activity.
