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The rational development of effective energy materials is crucial to the sustainable growth of society. Here, 3D hierarchical porous graphene (hpG)-based materials with micro-, meso-, and macroporous features have recently attracted extensive research efforts due to unique porosities, controllable synthesis, versatile functionalization, favorable mass/electron transport, and superior performances...
Metal-free electrocatalyst is an emerging energy material to replace precious metal for effective oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a working electrochemical energy conversion device. Developing an effective bifunctional catalyst with abundant highly active sites and full exposure to reactants is strongly considered. Herein a nitrogen-doped mesoporous graphene...
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