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Graphene is an attractive catalyst support for direct methanol fuel cells (DMFCs). However, the close-packed structure and hydrophobicity of the graphene sheets will prevent noble metal nanoparticles (NMNPs) from exposed to the electrolyte, leading to a reduction in the utilization of NMNPs. In this work, a unique 3D graphene/PtNPs composite catalyst with double network channels is in-situ fabricated...
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