Wei-Wei Wang, Rui Huang, Yu Tao, Peng He, Su-Xing Tuo, Yu-Jian Bian, Rui-Ting Hu, Jun Yan, Yan-Jie Liang, Wen-Chao Zhang
{"title":"为无树枝状物水溶液 Zn 离子电池构建多功能 Ti3C2Tx MXene/g-C3N4 人工保护层","authors":"Wei-Wei Wang, Rui Huang, Yu Tao, Peng He, Su-Xing Tuo, Yu-Jian Bian, Rui-Ting Hu, Jun Yan, Yan-Jie Liang, Wen-Chao Zhang","doi":"10.1007/s12598-024-02739-0","DOIUrl":null,"url":null,"abstract":"<div><p>The electrochemical utilization of Zn anodes in aqueous batteries is hampered by the intricate and interconnected issues of Zn dendrite growth, H<sub>2</sub> evolution and Zn corrosion reactions. In this study, a multifunctional protective layer comprising MXene and graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) was constructed using a self-assembly strategy. The MXene/g-C<sub>3</sub>N<sub>4</sub> protective layer exhibited robust zincophilic characteristics, which facilitated a uniform distribution of the electric field and ensured a sufficient influx of Zn<sup>2+</sup>. This reduces the Zn<sup>2+</sup> nucleation barrier and prevents dendrite growth. In addition, the hydrophobic nature of the protective layer, coupled with its negative charge, can repel SO<sub>4</sub><sup>2−</sup> and select water molecules from the electrolyte, which aids in mitigating corrosion and H<sub>2</sub> evolution. The symmetric Zn cell coated with the MXene/g-C<sub>3</sub>N<sub>4</sub> protective layer showed remarkable stability, achieving over 2000 h of reversible cycling at 1 mA·cm<sup>−2</sup>. Furthermore, the MXene/g-C<sub>3</sub>N<sub>4</sub>-coated Zn anode paired with a sodium-doped V<sub>2</sub>O<sub>5</sub> cathode (NVO) exhibited enhanced cycling capability over 1500 cycles.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Construction of a multifunctional Ti3C2Tx MXene/g-C3N4 artificial protective layer for dendrite-free aqueous Zn-ion batteries\",\"authors\":\"Wei-Wei Wang, Rui Huang, Yu Tao, Peng He, Su-Xing Tuo, Yu-Jian Bian, Rui-Ting Hu, Jun Yan, Yan-Jie Liang, Wen-Chao Zhang\",\"doi\":\"10.1007/s12598-024-02739-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The electrochemical utilization of Zn anodes in aqueous batteries is hampered by the intricate and interconnected issues of Zn dendrite growth, H<sub>2</sub> evolution and Zn corrosion reactions. In this study, a multifunctional protective layer comprising MXene and graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) was constructed using a self-assembly strategy. The MXene/g-C<sub>3</sub>N<sub>4</sub> protective layer exhibited robust zincophilic characteristics, which facilitated a uniform distribution of the electric field and ensured a sufficient influx of Zn<sup>2+</sup>. This reduces the Zn<sup>2+</sup> nucleation barrier and prevents dendrite growth. In addition, the hydrophobic nature of the protective layer, coupled with its negative charge, can repel SO<sub>4</sub><sup>2−</sup> and select water molecules from the electrolyte, which aids in mitigating corrosion and H<sub>2</sub> evolution. The symmetric Zn cell coated with the MXene/g-C<sub>3</sub>N<sub>4</sub> protective layer showed remarkable stability, achieving over 2000 h of reversible cycling at 1 mA·cm<sup>−2</sup>. Furthermore, the MXene/g-C<sub>3</sub>N<sub>4</sub>-coated Zn anode paired with a sodium-doped V<sub>2</sub>O<sub>5</sub> cathode (NVO) exhibited enhanced cycling capability over 1500 cycles.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":749,\"journal\":{\"name\":\"Rare Metals\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-06-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rare Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12598-024-02739-0\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-02739-0","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Construction of a multifunctional Ti3C2Tx MXene/g-C3N4 artificial protective layer for dendrite-free aqueous Zn-ion batteries
The electrochemical utilization of Zn anodes in aqueous batteries is hampered by the intricate and interconnected issues of Zn dendrite growth, H2 evolution and Zn corrosion reactions. In this study, a multifunctional protective layer comprising MXene and graphitic carbon nitride (g-C3N4) was constructed using a self-assembly strategy. The MXene/g-C3N4 protective layer exhibited robust zincophilic characteristics, which facilitated a uniform distribution of the electric field and ensured a sufficient influx of Zn2+. This reduces the Zn2+ nucleation barrier and prevents dendrite growth. In addition, the hydrophobic nature of the protective layer, coupled with its negative charge, can repel SO42− and select water molecules from the electrolyte, which aids in mitigating corrosion and H2 evolution. The symmetric Zn cell coated with the MXene/g-C3N4 protective layer showed remarkable stability, achieving over 2000 h of reversible cycling at 1 mA·cm−2. Furthermore, the MXene/g-C3N4-coated Zn anode paired with a sodium-doped V2O5 cathode (NVO) exhibited enhanced cycling capability over 1500 cycles.
期刊介绍:
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.