文献类型：期刊文献

英文题名：Positively charged Pt-based cocatalysts: an orientation for achieving efficient photocatalytic water splitting

作者：Liu, Jinze[1];Li, Yuhang[2];Zhou, Xiaodong[1];Jiang, Hao[1,2];Yang, Hua Gui[2];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrane Mat, Shanghai 200237, Peoples R China

年份：2020

卷号：8

期号：1

起止页码：17

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20195207907066);WOS:【SCI-EXPANDED(收录号:WOS:000503772400001)】；

基金：This work was supported by the National Natural Science Foundation of China (21808061, 21838003, 91834301), the Shanghai Scientific and Technological Innovation Project (18JC1410500, 18DZ2252400, 19JC1410400), the "Fundamental Research Funds for the Central Universities" (222201714001, 222201718002), the Shanghai Sailing Program (17YF1402900), the "Chen Guang" project supported by the Shanghai Municipal Education Commission and the Shanghai Education Development Foundation (16CG31).

语种：英文

外文关键词：Photocatalytic activity - Catalysts

摘要：Considerable effort has been made to develop efficient water-splitting photocatalysts, which are generally composed of light-absorbing semiconductors and so-called cocatalysts that play a key role in accelerating the reaction kinetics of water splitting. Platinum (Pt)-based catalysts have been widely regarded as excellent cocatalysts for photocatalytic water splitting, but the relationship between their valence state and reaction activity for photocatalytic water splitting had never been summarized. This review presents positively charged Pt nanoparticles, clusters and even single atoms that can boost the reaction activity dramatically, and summarises several strategies and techniques to tailor the positive valence states of Pt-based cocatalysts such as by using oxygen atoms. By tailoring the valence states of Pt-based cocatalysts, the capacities of these cocatalysts for water splitting can be significantly enhanced. Moreover, the operando analyses that can determine the real structures of this type of cocatalyst under working conditions are also discussed. These developments suggest that positively charged Pt-based cocatalysts could determine the direction and efficiency of photocatalytic water splitting, which may provide an ideal orientation to design state-of-the-art catalysts for achieving efficient photocatalytic water splitting.