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A unique ultrathin porous NiO nanosheets/graphene hierarchical structure is successfully fabricated via a facile, effective, and general strategy. The advantageous combination of conducting and flexible graphene and porous and ultrathin NiO nanosheets endows the obtained hybrid with a remarkable lithium-storage performance, including high reversible capacity, good rate capability and cycle performance.
Huang et al. (Sun,) studied this question.