Hierarchically porous nitrogen-doped graphene aerogels as efficient metal-free oxygen reduction catalysts.


Nitrogen-doped graphene aerogels with hierarchically porous architectures (N-Gs) are fabricated through the co-assembly of graphene oxide and o-phthalonitrile in a solvothermal process and the thermal treatment of the obtained composites at different temperatures. The structural characterizations indicate that both mesopores and macropores exist in the… (More)
DOI: 10.1016/j.jcis.2016.11.008


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