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A Mo doping WO3/CdZnS heterojunction photoelectrode for boosting electron storage capacity

文献类型：期刊论文

作者Tian, Jing1,2,3; Qian, Feng1; Cao, Meijing1; Gong, Jiaqi1; Li, Jiarun1; Wang, Lei1; Tian, Minge3; Chen, Zhuoyuan4
刊名APPLIED SURFACE SCIENCE
出版日期2023-10-15
卷号634页码:12
关键词Mo doping Heterojunction photoelectrode Electron storage capacity Persistent photoelectrochemical cathodic protection
ISSN号0169-4332
DOI10.1016/j.apsusc.2023.157680
通讯作者Li, Jiarun(lijiarun@qust.edu.cn) ; Wang, Lei(inorchemwl@126.com)
英文摘要Most of the photoelectrodes for photoelectrochemical cathodic protection (PECCP) technology reported at present cannot store electrons, leading to the inability to protect metals in the absence of light, which becomes the main defect that limits the practical application of PECCP. In this work, a Mo doping WO3/CdZnS heterojunction photoelectrode with electrons storage capability was prepared, by which the PECCP can be kept running in the absence of light. The result of theoretical calculation of density functional validates that Mo doping can introduce new doping levels into WO3, leading to modifications in the intrinsic electronic structure associated with increasing capacitance and conductivity. The compounding of CdZnS can not only broaden the light absorption threshold of the photoelectrode, but also charge the Mo-WO3. Besides, the construction of heterojunction also facilitates the oriented separation and migration of photogenerated carriers. The 0.3%Mo-WO3/CdZnS-2 composite photoelectrode with desirable capacity of electron storage can store the quantity of electric charge about 1.87 x 10-3 C after 100 s illumination, which is about 1.5 times of WO3/CdZnS-2 without Mo doping. In the meanwhile, the persistent PECCP performance in the absence of light was also prolonged from 481 s to 584 s.
WOS关键词HYDROGEN-PRODUCTION ; NANOTUBE COMPOSITE ; METHYLENE-BLUE ; WO3 ; EFFICIENT ; PERFORMANCE ; SYSTEM ; FILMS
资助项目Natural Science Foun- dation of ShanDong[ZR2021MD002] ; National Natural Science Foundation of China[41976036] ; National Natural Science Foundation of China[42276035]
WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
WOS记录号WOS:001013758700001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/182345]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Li, Jiarun; Wang, Lei
作者单位1.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Sci Green Shandong Environm Technol Co Ltd, Jining 272415, Peoples R China
4.Foshan Univ, Sch Mat Sci & Hydrogen Energy, 18 Jiangwanyi Rd, Foshan 528000, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Jing,Qian, Feng,Cao, Meijing,et al. A Mo doping WO3/CdZnS heterojunction photoelectrode for boosting electron storage capacity[J]. APPLIED SURFACE SCIENCE,2023,634:12.
APA Tian, Jing.,Qian, Feng.,Cao, Meijing.,Gong, Jiaqi.,Li, Jiarun.,...&Chen, Zhuoyuan.(2023).A Mo doping WO3/CdZnS heterojunction photoelectrode for boosting electron storage capacity.APPLIED SURFACE SCIENCE,634,12.
MLA Tian, Jing,et al."A Mo doping WO3/CdZnS heterojunction photoelectrode for boosting electron storage capacity".APPLIED SURFACE SCIENCE 634(2023):12.

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来源：海洋研究所

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