文献类型：期刊文献

英文题名：Activation strategies of water-splitting electrocatalysts

作者：Liu, Peng Fei[1];Yin, Huajie[2];Fu, Huai Qin[1,2];Zu, Meng Yang[1];Yang, Hua Gui[1];Zhao, Huijun[2,3]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Gold Coast, Qld 4222, Australia;[3]Chinese Acad Sci, Inst Solid State Phys, CAS Ctr Excellence Nanosci, Ctr Environm & Energy Nanomat, Hefei 230031, Peoples R China

年份：2020

卷号：8

期号：20

起止页码：10096

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20202408806922);WOS:【SCI-EXPANDED(收录号:WOS:000539350100003)】；

基金：This work was financially supported by the Australian Research Council (ARC) Discovery Project (DP170104834), National Natural Science Funds for Distinguished Young Scholar (51725201), International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (51920105003), Innovation Program of Shanghai Municipal Education Commission (E00014), National Natural Science Foundation of China (21573068 and 51902105), Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400), Shanghai Sailing Program (19YF1411600), China Postdoctoral Science Foundation Funded Project (2018M641938) and Griffith University Postdoctoral Fellowship.

语种：英文

外文关键词：Energy conversion - Chemical activation - Electrocatalysis - Electrolysis - Catalyst activity

摘要：Electrocatalysts featuring high activity, selectivity and stability are urgently needed in solar-electricity powered energy-conversion technologies. In the past decade, various electrocatalysts have been demonstrated to be electrocatalytically active toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Despite the significant progress, catalyst discovery is still dominated by "trial-and-error" practice due to the lack of understanding of the origin of electrocatalytic activity, active site structures and key factors determining the operando electrocatalytic performance. Therefore, this critical review focuses on summarizing effective catalyst activation strategies to enable efficient catalyst discovery, on the basis of understanding real active sites for the HER and OER. Meanwhile, theory prediction and operando characterization techniques have also been introduced to identify the origin of electrocatalytic activity and active site structures. Moreover, catalyst atomic structure reconstruction/rearrangement under working conditions and the accompanying catalyst activation strategies have been discussed to address the negative impacts of reaction media. Finally, a brief perspective on the challenges and future directions for predicting, characterizing and understanding operando active sites to discover efficient activation strategies will also be presented.