Defect engineering of two-dimensional materials for efficient electrocatalysis  

作　　者：Hongwei Zhang Ruitao Lv 

机构地区：[1]State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing,100084,China [2]Key Laboratory of Advanced Materials(MOE),School of Materials Science and Engineering,Tsinghua University,Beijing,100084,China

出　　处：《Journal of Materiomics》2018年第2期95-107,共13页无机材料学学报（英文）

基　　金：We acknowledge the financial support from the National Natural Science Foundation of China(Grant No.51722207);the Beijing Nova Program(Grant No.20161151041);the Tsinghua University Initiative Scientific Research Program(Grant No.20151080367);the 973 program of China(Grant No.2015CB932500,2014CB932401).

摘　　要：Exploring high-activity and earth-abundant electrocatalysts for electrochemical reactions,including the hydrogen evolution reaction(HER),oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),etc.are crucial for building future large-scale green energy conversion and storage systems.Recently,some low-cost and resourceful two-dimensional(2D)semiconductor materials such as transition metal dichalcogenides(TMDCs)and layered oxides,have attracted increasing attention in electrocatalysis applications in virtue of their comparable catalytic activity and long-term stability to conventional noble metal-based catalysts(e.g.Pt/C,RuO_(2),IrO_(2),etc.).However,the intrinsic activity of some 2D materials still cannot meet the increasing requirement for highly efficient and reliable eletrocatalysts for future energy conversion and storage systems.In this context,designing elctrocatalysts with sufficient amount of active sites accessible for electrolyte,high activity of each active sites,and excellent conductivity is of great significance.To this end,defect engineering is a powerful strategy for tailoring the physical and chemical properties of 2D materials for efficient electrocatalysis.In this article,an overview of recent progress on defect engineering in 2D eletrocatalysts for HER,ORR and OER is presented.The effects of defects on the structure and tuned properties of 2D materials in eletrocatalysts applications are also summarized.Additionally,the challenges and opportunities ahead in this emerging field are also proposed.

关 键 词：Defect engineering 2D materials HER ORR OER 

分 类 号：O64[理学—物理化学]