Ruyi Wang , Caiyun Chen , Yuxin Kan , Wenjun Fang , Xingzhi Li , Lingling Wang , Yong Jia
{"title":"实现高效光电化学水氧化的超薄 FeVO4 改性铝掺杂氧化锌纳米棒光电阳极","authors":"Ruyi Wang , Caiyun Chen , Yuxin Kan , Wenjun Fang , Xingzhi Li , Lingling Wang , Yong Jia","doi":"10.1016/j.jelechem.2024.118790","DOIUrl":null,"url":null,"abstract":"<div><div>Fabricating of high-performance photoanodes played an important role in achieving efficient conversion of solar energy to hydrogen energy. Herein, Al-ZnO/FeVO<sub>4</sub> core–shell nanorods arrays (NRs) was constructed through a simple two-step method to form type-II heterojunction. Compared with the Al-ZnO substrate (0.55 mA/cm<sup>2</sup>), the modified Al-ZnO/FeVO<sub>4</sub> photoanode exhibited superior photocurrent density, with an optimal photocurrent density of 1.13 mA/cm<sup>2</sup> at 1.23 V vs. RHE (AM 1.5G). Heterogeneous structures suppressed the photoinduced bulk recombination of charge carriers and improved the separation efficiency of charge carriers. More importantly, the ultra-thin FeVO<sub>4</sub> modification layer weakened surface capture states, increased photovoltage, and promoted interfacial charge transfer dynamics. This work provided new ideas for designing high-performance photoanodes.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118790"},"PeriodicalIF":4.1000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultra-thin FeVO4 modified Al-doped ZnO nanorods photoanode towards efficient photoelectrochemical water oxidation\",\"authors\":\"Ruyi Wang , Caiyun Chen , Yuxin Kan , Wenjun Fang , Xingzhi Li , Lingling Wang , Yong Jia\",\"doi\":\"10.1016/j.jelechem.2024.118790\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Fabricating of high-performance photoanodes played an important role in achieving efficient conversion of solar energy to hydrogen energy. Herein, Al-ZnO/FeVO<sub>4</sub> core–shell nanorods arrays (NRs) was constructed through a simple two-step method to form type-II heterojunction. Compared with the Al-ZnO substrate (0.55 mA/cm<sup>2</sup>), the modified Al-ZnO/FeVO<sub>4</sub> photoanode exhibited superior photocurrent density, with an optimal photocurrent density of 1.13 mA/cm<sup>2</sup> at 1.23 V vs. RHE (AM 1.5G). Heterogeneous structures suppressed the photoinduced bulk recombination of charge carriers and improved the separation efficiency of charge carriers. More importantly, the ultra-thin FeVO<sub>4</sub> modification layer weakened surface capture states, increased photovoltage, and promoted interfacial charge transfer dynamics. This work provided new ideas for designing high-performance photoanodes.</div></div>\",\"PeriodicalId\":355,\"journal\":{\"name\":\"Journal of Electroanalytical Chemistry\",\"volume\":\"976 \",\"pages\":\"Article 118790\"},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electroanalytical Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1572665724007689\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroanalytical Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1572665724007689","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Ultra-thin FeVO4 modified Al-doped ZnO nanorods photoanode towards efficient photoelectrochemical water oxidation
Fabricating of high-performance photoanodes played an important role in achieving efficient conversion of solar energy to hydrogen energy. Herein, Al-ZnO/FeVO4 core–shell nanorods arrays (NRs) was constructed through a simple two-step method to form type-II heterojunction. Compared with the Al-ZnO substrate (0.55 mA/cm2), the modified Al-ZnO/FeVO4 photoanode exhibited superior photocurrent density, with an optimal photocurrent density of 1.13 mA/cm2 at 1.23 V vs. RHE (AM 1.5G). Heterogeneous structures suppressed the photoinduced bulk recombination of charge carriers and improved the separation efficiency of charge carriers. More importantly, the ultra-thin FeVO4 modification layer weakened surface capture states, increased photovoltage, and promoted interfacial charge transfer dynamics. This work provided new ideas for designing high-performance photoanodes.
期刊介绍：
The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied.
Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
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