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Rational design of three-phase interfaces for electrocatalysis

Nano Research 2019年第9期12卷 2055-2066页

作者： Yuqing Wang Yuqin Zou Li Tao Yanyong Wang Gen Huang Shiqian Du Shuangyin Wang State Key Laboratory of Chem/Bio-Sensing and Chemometrics Provincial Hunan Key Laboratory for Graphene Materials and De vicesCollege oj Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

gas-involving electrochemical reactions,like oxygen reduction reaction (ORR),oxygen evolution reaction (OER),and hydrogen evolution reaction (HER),are critical processes for energy-saving,environment-friendly energy conversion and storage technologies which gain increasing *** development of according electrocatalysts is key to boost their electrocatalytic *** efforts have been put into the development of advanced electrocatalysts to overcome sluggish *** the other hand,the electrode interfaces-architecture construction plays an equally important role for practical applications because these imperative electrode reactions generally proceed at triple-phase interfaces of gas,liquid electrolyte,and solid electrocatalyst.A desirable architecture should facilitate the complicate reactions occur at the triple-phase interfaces,which including mass diffusion,surface reaction and electron *** this review,we will summarize some design principles and synthetic strategies for optimizing triple-phase interfaces of gas-involving electrocatalysis systematically,based on the electrode reaction process at the three-phase *** can be divided into three main optimization directions:exposure of active sites,promotion of mass diffusion and acceleration of electron ***,we especially highlight several remarkable works with comprehensive optimization about specific energy conversion devices,including metal-air batteries,fuel cells,and water-splitting devices are demonstrated with superb *** the last section,the perspectives and challenges in the future are proposed.

关键词： triple-phase irderfaces gas-involving electrocatalysis mass diffusion exposure of active sites electron transfer

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