{"title":"The photoelectrochemical properties of FTO/WO3/BiVO4/TiO2 photoanode for water splitting","authors":"","doi":"10.1016/j.chemphys.2024.112457","DOIUrl":null,"url":null,"abstract":"<div><p>This work investigates the photoelectrochemical performance of an FTO (Fluorine-doped Tin Oxide) /WO<sub>3</sub> (tungsten trioxide) /BiVO<sub>4</sub> (bismuth vanadate) /TiO<sub>2</sub> (titanium dioxide) photoanode for water splitting. By forming a heterojunction between WO<sub>3</sub> and BiVO<sub>4</sub>, charge separation and transportation are significantly enhanced, resulting in an improved photocurrent density. Surface modification with a thin TiO<sub>2</sub> layer further improves the stability of the photoanode without compromising its photocurrent. The SEM, XRD, and XPS analyses confirm the successful formation of the photoanode structure. The photoelectrochemical J-V curves demonstrate that the WO<sub>3</sub>/BiVO<sub>4</sub> composite electrode outperforms single WO<sub>3</sub> and BiVO<sub>4</sub> electrodes, and the TiO<sub>2</sub> coating further enhances its performance. These findings provide valuable insights into optimizing BiVO<sub>4</sub>-based photoanodes for efficient hydrogen production via water splitting.</p></div>","PeriodicalId":272,"journal":{"name":"Chemical Physics","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301010424002866","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This work investigates the photoelectrochemical performance of an FTO (Fluorine-doped Tin Oxide) /WO3 (tungsten trioxide) /BiVO4 (bismuth vanadate) /TiO2 (titanium dioxide) photoanode for water splitting. By forming a heterojunction between WO3 and BiVO4, charge separation and transportation are significantly enhanced, resulting in an improved photocurrent density. Surface modification with a thin TiO2 layer further improves the stability of the photoanode without compromising its photocurrent. The SEM, XRD, and XPS analyses confirm the successful formation of the photoanode structure. The photoelectrochemical J-V curves demonstrate that the WO3/BiVO4 composite electrode outperforms single WO3 and BiVO4 electrodes, and the TiO2 coating further enhances its performance. These findings provide valuable insights into optimizing BiVO4-based photoanodes for efficient hydrogen production via water splitting.
期刊介绍:
Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.