Abstract
In this chapter, for large-scale commercialization of fuel cell technology, the use of polymer functionalized graphene (PFG) in fuel cells is discussed with hydrogen and methanol fuel cells as examples. PFG is used as a proton exchange membrane (PEM), anion exchange membrane (AEM) and also as an electrocatalyst replacing the precious platinum metal. The fuel cell parameters e.g. proton conductivity, hydroxide ion conductivity, electrocatalytic activity, water uptake, water retention capability, ion exchange capacity, open circuit voltage, peak power density and stability of cell are discussed here. When PFG is introduced into the cell material, the fuel cell parameters show a significant improvement from those of pristine polymers. The increase in the cell parameters of PFG from pristine polymer measured at identical conditions is attributed to the excellent structural, mechanical, thermal and conducting properties of graphene.
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