Controllable synthesis of CdS nanospheres photoelectrode for photoelectrochemical water splitting  

作　　者：Yingpeng Xie Yi Sun Renzheng Jiang Junhua Chang Yongqiang Yang Lili Zhang Chao Zhen Fei Han Enlei Zhang Guosheng Wang 

机构地区：[1]Key Laboratory on Resources Chemicals and Materials of Ministry of Education,College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,PR China [2]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,72 Wenhua RD,Shenyang 110016,PR China

出　　处：《Resources Chemicals and Materials》2024年第1期38-45,共8页资源化工与材料（英文）

基　　金：supported by National Key R&D Program of China(2022YFF0705104);National Natural Science Foundation of China(51402199,U21A20316);Liaoning Revitalization Talents Prograrn(XLYC2007193);Natural Science Foundation of Liaoning Province(2021NLTS1210).

摘　　要：CdS nanospheres were grown on indium tin oxide(ITO)substrate using a hydrothermal method.The crystal structure,morphology and electronic structure of the samples synthesized were characterized in detail.The results confirm that the crystallinity,size,crystal defects of the CdS nanospheres and the film thickness of CdS photoelectrodes can be tuned by varying the precursor Cd2+concentration.Combined with charge transfer dynamics analysis,it can be found that proper particle size and film thickness,as well as fewer defects,will result in better charge separation efficiency of the prepared CdS/ITO photoelectrodes,thereby exhibiting better photoelectrochemical performance for water splitting.The optimized CdS/ITO photoelectrode synthesized with a Cd2+concentration of 0.14 mol⋅L1 gave a photocurrent density of 5.10 mA⋅cm^(-2)at potential of 1.23 V versus the reversible hydrogen electrode(RHE),under a simulated solar illumination of 100 mW⋅cm^(-2).

关 键 词：CdS nanospheres Crystal defects Film thickness PHOTOELECTRODES Water splitting 

分 类 号：TB3[一般工业技术—材料科学与工程]