Abstract
Our previous work demonstrated that the decorated Pt nano particles (PNP) distributed uniformly over the surface of the PBI-functionalized graphene. Considering the excellent chemical stability and conductivity, graphene are the promising catalyst supports for PEMFCs. However, the mass transfer issue is a huge challenge for the application of graphene as catalyst supports. In this paper, a method to overcome such an issue was proposed, in which the highly stable spacers were introduced during catalyst ink preparation to create channels/pores which facilitates the mass transfer, consequently, increase the high current density performance while maintain the excellent stability.
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