{"title":"掺杂电子富铁杂原子的卵黄壳 MoS2 纳米球用于超长寿命锰离子电池","authors":"Mingjing Chu, Xin Xu, Wenqing Zhao, Yue Dai, Xu Zhou, Guanwei Xue, Yiwei Xue, Liang Cao, Shuoran Chen","doi":"10.1021/acssuschemeng.4c04400","DOIUrl":null,"url":null,"abstract":"Molybdenum disulfide (MoS<sub>2</sub>) has been extensively studied as an anode for sodium-ion batteries owing to its large theoretical specific capacity and steady crystal texture. Nevertheless, the unsatisfactory rate capability and short cycling lifespan of MoS<sub>2</sub> derived from its inferior electrical conductivity and extensive volume variation among Na<sup>+</sup> insertion and extraction have greatly impeded its practical exploitation. Hence, we proposed an electron coupling strategy with the rational incorporation of iron heteroatoms in a novel yolk–shell MoS<sub>2</sub> nanostructure (FMS@C) through an advanced micelle-confined microemulsion technology. In this configuration, the doping of electron-rich Fe heteroatoms breaks the long-range ordered texture of pristine MoS<sub>2</sub> with extensively activated electronic structures, thus enabling accelerated mass transfer and charge diffusion. Meanwhile, the novel yolk–shell nanoarchitecture with enough inner room can efficiently accommodate the volume variation during repeated charge/discharge cycles, thus favoring the high stability of the structure. Consequently, the prepared FMS@C anode delivers superior rate capability and impressive reversible capacity retention, and it can achieve 201.5 mA h<sup>–1</sup> after 5500 cycles at 5 A g<sup>–1</sup> with a low capacity decay of 0.0057% per cycle. Accordingly, this work opens up a brilliant way to improve the performance of metal sulfur compounds as advanced energy storage electrodes.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":7.1000,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Yolk–Shell MoS2 Nanosphere-Doped Electron-Rich Iron Heteroatoms for Ultralong Lifespan Na-Ion Batteries\",\"authors\":\"Mingjing Chu, Xin Xu, Wenqing Zhao, Yue Dai, Xu Zhou, Guanwei Xue, Yiwei Xue, Liang Cao, Shuoran Chen\",\"doi\":\"10.1021/acssuschemeng.4c04400\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Molybdenum disulfide (MoS<sub>2</sub>) has been extensively studied as an anode for sodium-ion batteries owing to its large theoretical specific capacity and steady crystal texture. Nevertheless, the unsatisfactory rate capability and short cycling lifespan of MoS<sub>2</sub> derived from its inferior electrical conductivity and extensive volume variation among Na<sup>+</sup> insertion and extraction have greatly impeded its practical exploitation. Hence, we proposed an electron coupling strategy with the rational incorporation of iron heteroatoms in a novel yolk–shell MoS<sub>2</sub> nanostructure (FMS@C) through an advanced micelle-confined microemulsion technology. In this configuration, the doping of electron-rich Fe heteroatoms breaks the long-range ordered texture of pristine MoS<sub>2</sub> with extensively activated electronic structures, thus enabling accelerated mass transfer and charge diffusion. Meanwhile, the novel yolk–shell nanoarchitecture with enough inner room can efficiently accommodate the volume variation during repeated charge/discharge cycles, thus favoring the high stability of the structure. Consequently, the prepared FMS@C anode delivers superior rate capability and impressive reversible capacity retention, and it can achieve 201.5 mA h<sup>–1</sup> after 5500 cycles at 5 A g<sup>–1</sup> with a low capacity decay of 0.0057% per cycle. Accordingly, this work opens up a brilliant way to improve the performance of metal sulfur compounds as advanced energy storage electrodes.\",\"PeriodicalId\":25,\"journal\":{\"name\":\"ACS Sustainable Chemistry & Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.1000,\"publicationDate\":\"2024-08-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Sustainable Chemistry & Engineering\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acssuschemeng.4c04400\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Sustainable Chemistry & Engineering","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acssuschemeng.4c04400","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Yolk–Shell MoS2 Nanosphere-Doped Electron-Rich Iron Heteroatoms for Ultralong Lifespan Na-Ion Batteries
Molybdenum disulfide (MoS2) has been extensively studied as an anode for sodium-ion batteries owing to its large theoretical specific capacity and steady crystal texture. Nevertheless, the unsatisfactory rate capability and short cycling lifespan of MoS2 derived from its inferior electrical conductivity and extensive volume variation among Na+ insertion and extraction have greatly impeded its practical exploitation. Hence, we proposed an electron coupling strategy with the rational incorporation of iron heteroatoms in a novel yolk–shell MoS2 nanostructure (FMS@C) through an advanced micelle-confined microemulsion technology. In this configuration, the doping of electron-rich Fe heteroatoms breaks the long-range ordered texture of pristine MoS2 with extensively activated electronic structures, thus enabling accelerated mass transfer and charge diffusion. Meanwhile, the novel yolk–shell nanoarchitecture with enough inner room can efficiently accommodate the volume variation during repeated charge/discharge cycles, thus favoring the high stability of the structure. Consequently, the prepared FMS@C anode delivers superior rate capability and impressive reversible capacity retention, and it can achieve 201.5 mA h–1 after 5500 cycles at 5 A g–1 with a low capacity decay of 0.0057% per cycle. Accordingly, this work opens up a brilliant way to improve the performance of metal sulfur compounds as advanced energy storage electrodes.
期刊介绍:
ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment.
The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.