Xiu-Shuang Xing, Xuyang Zeng, Zhongyuan Zhou, Zeinhom M. El-Bahy, Mohamed H. Helal, Qianyu Gao, Hassan Algadi, Peilin Song, Xuzhao Liu, Xinru Zhang, Jimin Du
{"title":"在赤铁矿光阳极上构建铁基掺杂金属有机骨架膜用于高效太阳能水分解","authors":"Xiu-Shuang Xing, Xuyang Zeng, Zhongyuan Zhou, Zeinhom M. El-Bahy, Mohamed H. Helal, Qianyu Gao, Hassan Algadi, Peilin Song, Xuzhao Liu, Xinru Zhang, Jimin Du","doi":"10.1007/s42114-023-00777-3","DOIUrl":null,"url":null,"abstract":"<div><p>Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) is considered a highly promising candidate material for photoelectrochemical water splitting (PEC-WS) due to its suitable band gap and band edge location. Nevertheless, enhancing PEC-WS performance through the surface construction of low-cost, highly efficient, and stable electrocatalysts still remains a challenge. This work presents a facile strategy to fabricate α-Fe<sub>2</sub>O<sub>3</sub> photoanodes modified with the metal–organic framework films doped with iron-group elements (Fe, Co, and Ni), which forms abundant active sites and leverage bimetallic synergistic effects. The optimal photocurrent density of FTO/Sn@α-Fe<sub>2</sub>O<sub>3</sub>/MIL-125/Co photoanode achieves 1.97 mA/cm<sup>2</sup> at 1.23 V<sub>RHE</sub>, which is 2.3 times that of the pure α-Fe<sub>2</sub>O<sub>3</sub> photoanode. The on-set potential exhibits a cathodic shift of 0.1 V. The MIL-125 catalyst with Co doping exhibits the most excellent PEC-WS performance among the three dopants (Fe, Co, and Ni), which can be primarily attributed to more abundant active sites, the lower photogenerated carrier recombination, and the enhanced charge separation and transfer efficiency.</p><h3>Graphical Abstract</h3>\n <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\n </div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"6 6","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Constructing iron-group doped metal–organic framework films on hematite photoanodes for efficient solar water splitting\",\"authors\":\"Xiu-Shuang Xing, Xuyang Zeng, Zhongyuan Zhou, Zeinhom M. El-Bahy, Mohamed H. Helal, Qianyu Gao, Hassan Algadi, Peilin Song, Xuzhao Liu, Xinru Zhang, Jimin Du\",\"doi\":\"10.1007/s42114-023-00777-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) is considered a highly promising candidate material for photoelectrochemical water splitting (PEC-WS) due to its suitable band gap and band edge location. Nevertheless, enhancing PEC-WS performance through the surface construction of low-cost, highly efficient, and stable electrocatalysts still remains a challenge. This work presents a facile strategy to fabricate α-Fe<sub>2</sub>O<sub>3</sub> photoanodes modified with the metal–organic framework films doped with iron-group elements (Fe, Co, and Ni), which forms abundant active sites and leverage bimetallic synergistic effects. The optimal photocurrent density of FTO/Sn@α-Fe<sub>2</sub>O<sub>3</sub>/MIL-125/Co photoanode achieves 1.97 mA/cm<sup>2</sup> at 1.23 V<sub>RHE</sub>, which is 2.3 times that of the pure α-Fe<sub>2</sub>O<sub>3</sub> photoanode. The on-set potential exhibits a cathodic shift of 0.1 V. The MIL-125 catalyst with Co doping exhibits the most excellent PEC-WS performance among the three dopants (Fe, Co, and Ni), which can be primarily attributed to more abundant active sites, the lower photogenerated carrier recombination, and the enhanced charge separation and transfer efficiency.</p><h3>Graphical Abstract</h3>\\n <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\\n </div>\",\"PeriodicalId\":7220,\"journal\":{\"name\":\"Advanced Composites and Hybrid Materials\",\"volume\":\"6 6\",\"pages\":\"\"},\"PeriodicalIF\":23.2000,\"publicationDate\":\"2023-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Composites and Hybrid Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42114-023-00777-3\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-023-00777-3","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Constructing iron-group doped metal–organic framework films on hematite photoanodes for efficient solar water splitting
Hematite (α-Fe2O3) is considered a highly promising candidate material for photoelectrochemical water splitting (PEC-WS) due to its suitable band gap and band edge location. Nevertheless, enhancing PEC-WS performance through the surface construction of low-cost, highly efficient, and stable electrocatalysts still remains a challenge. This work presents a facile strategy to fabricate α-Fe2O3 photoanodes modified with the metal–organic framework films doped with iron-group elements (Fe, Co, and Ni), which forms abundant active sites and leverage bimetallic synergistic effects. The optimal photocurrent density of FTO/Sn@α-Fe2O3/MIL-125/Co photoanode achieves 1.97 mA/cm2 at 1.23 VRHE, which is 2.3 times that of the pure α-Fe2O3 photoanode. The on-set potential exhibits a cathodic shift of 0.1 V. The MIL-125 catalyst with Co doping exhibits the most excellent PEC-WS performance among the three dopants (Fe, Co, and Ni), which can be primarily attributed to more abundant active sites, the lower photogenerated carrier recombination, and the enhanced charge separation and transfer efficiency.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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