Abstract
With the increased energy demand, developing renewable and clean energy technologies becomes more and more significant to mitigate climate warming and alleviate the environmental pollution. The key point is design and synthesis of low cost and efficient materials for a wide variety of electrochemical reactions. Over the past ten years, two-dimensional(2D) nanomaterials that graphene represents have been paid much attention as a class of the most promising candidates for heterogeneous electrocatalysts in electrochemical storage and conversion. Their unique properties, such as good chemical stability, good flexibility, and good electronic properties, along with their nano-sized thickness and large specific area, make them exhibit comprehensively good performances for energy storage and conversion. Here, we present an overview on the recent advances in electrochemical applications of graphene, graphdiyne, transition metal dichalcogenides(TMDs), and MXenes for supercapacitors(SCs), oxygen reduction reaction (ORR), and hydrogen evolution reaction(HER).
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