文献类型：期刊文献

英文题名：Cooperation effect of heterojunction and co-catalyst in BiVO4/Bi2S3/NiOOH photoanode for improving photoelectrochemical performances

作者：Wei, Jindong[1];Zhou, Cailou[1];Xin, Ying[1];Li, Xifei[2,3];Zhao, Lei[4];Liu, Zhifeng[1]

第一作者：Wei, Jindong

通讯作者：Zhou, CL[1];Liu, ZF[1]

机构：[1]Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China;[2]Xian Univ Technol, Inst Adv Electrochem Energy, Xian 710048, Shaanxi, Peoples R China;[3]Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China;[4]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Peoples R China

第一机构：Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

通讯机构：[1]corresponding author), Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China.

年份：2018

卷号：42

期号：24

起止页码：19415-19422

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;Scopus(收录号：2-s2.0-85058031226);WOS:【SCI-EXPANDED(收录号:WOS:000456501100012)】；

基金：The authors gratefully acknowledge financial support from Science Funds of Tianjin for Distinguished Young Scholar (No. 17JCJQJC44800), Natural Science Foundation of Tianjin (No. 16JCYBJC17900) and Science and Technology Project of Henan Province (No. 182106000029).

语种：英文

摘要：The separation and transport of photogenerated electron-hole pairs as well as wider light absorption and surface reaction kinetics are the main limitations in photoelectrochemical water splitting. Based on these requirements for improving photoelectrochemical water splitting, a novel ternary BiVO4/Bi2S3/NiOOH photoanode was successfully fabricated in this study. In this prepared photoelectrode, Bi2S3 serves as a light absorber for wider solar spectra harvesting, so as to affect both the efficient separation and transfer of electron-hole pairs. NiOOH acts as a water oxidation co-catalyst for the function of accelerating the surface water oxidation reaction. This completed triple BiVO4/Bi2S3/NiOOH photoanode manifests the much enhanced photoelectrochemical activity with a photocurrent density of 0.91 mA cm(-2) measured at 1.23 V vs. RHE, indicating 1.8-fold and 3.0-fold improvement in photocurrent density compared with that of the BiVO4/Bi2S3 heterojunction and the pristine BiVO4, respectively. Furthermore, these results also prove that the cooperation effect between the heterojunction and co-catalyst can enhance the photoelectrochemical activity effectively and may have a great potential application in other high efficient PEC water splitting devices.