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Regulation of 2D Graphene Materials for Electrocatalysis.

Benefiting from unique excellent physical and chemical characteristics, graphene has attracted widespread attention in the application of electrocatalysis. As promising candidate, graphene is usually regulated with surface defects, heteroatoms, metal atoms and other active materials through covalent or non-covalent bonds to substitute for the noble metal catalysts, which has not been targeted in a report yet. In this review, we summarize the recent advances of approaches to engineering graphene-based electrocatalysts and emphasize the corresponding electrocatalytic active sites in various electrocatalysis circumstances, such as electrocatalytic hydrogen evolution reaction (HER), oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and etc. The opportunities and challenges in the future development of graphene-based catalysts are also discussed.