解密金属硫化物电极的多电子氧化还原化学,实现先进的水性铜离子存储

IF 11.2 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Science & Technology Pub Date : 2024-11-01 DOI:10.1016/j.jmst.2024.08.071
Zhenxin Zhao, Zonglin Yi, Rong Niu, Jiajun Chen, Rajesh Pathak, Yongzhen Wang, Jeffrey W Elam, Xiaomin Wang
{"title":"解密金属硫化物电极的多电子氧化还原化学,实现先进的水性铜离子存储","authors":"Zhenxin Zhao, Zonglin Yi, Rong Niu, Jiajun Chen, Rajesh Pathak, Yongzhen Wang, Jeffrey W Elam, Xiaomin Wang","doi":"10.1016/j.jmst.2024.08.071","DOIUrl":null,"url":null,"abstract":"While neutral aqueous metal batteries, featuring cost-effectiveness and non-flammability, hold significant potential for large-scale energy storage, their practical application is hampered by the limited specific capacity of cathode materials (less than 500 mAh g<sup>−1</sup>). Herein, capacity-oriented CoS<sub>2</sub> and rate-optimized Co<sub>9</sub>S<sub>8</sub> cathodes are developed based on the aqueous copper ion system. The charge-storage mechanism is systematically investigated through a series of ex-situ tests and density functional theory calculations, focusing on the reversible transitions of Co<sub>9</sub>S<sub>8</sub>→Cu<sub>7</sub>S<sub>4</sub>→Cu<sub>9</sub>S<sub>5</sub>/Cu<sub>1.8</sub>S and CoS<sub>2</sub>→Cu<sub>7</sub>S<sub>4</sub>→Cu<sub>2</sub>S, which are associated with the redox reactions of Cu<sup>2+</sup>/Cu<sup>+</sup>‖Co<sup>2+</sup>/Co and Cu<sup>2+</sup>/Cu<sup>+</sup>‖S<sub>2</sub><sup>2−</sup>/S<sup>2−</sup>, respectively. The electrochemical results show that CoS<sub>2</sub> can exhibit a superior capacity of 619 mAh g<sup>−1</sup> at 1 A g<sup>−1</sup> after 400 cycles, while Co<sub>9</sub>S<sub>8</sub> maintains an outstanding rate performance of 497 mAh g<sup>−1</sup> at 10 A g<sup>−1</sup> (the retention rate is 95% compared to 521 mAh g<sup>−1</sup> at 1 A g<sup>−1</sup>). As a proof of concept, an advanced CoS<sub>2</sub>//Zn hybrid aqueous battery demonstrates a working voltage of 1.20 V and a specific energy of 663 Wh kg<sub>cathode</sub><sup>−1</sup>. This work provides an alternative direction for developing sulfide cathodes in energetic aqueous metal batteries.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"18 1","pages":""},"PeriodicalIF":11.2000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Deciphering the multi-electron redox chemistry of metal-sulfide electrode toward advanced aqueous Cu ion storage\",\"authors\":\"Zhenxin Zhao, Zonglin Yi, Rong Niu, Jiajun Chen, Rajesh Pathak, Yongzhen Wang, Jeffrey W Elam, Xiaomin Wang\",\"doi\":\"10.1016/j.jmst.2024.08.071\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"While neutral aqueous metal batteries, featuring cost-effectiveness and non-flammability, hold significant potential for large-scale energy storage, their practical application is hampered by the limited specific capacity of cathode materials (less than 500 mAh g<sup>−1</sup>). Herein, capacity-oriented CoS<sub>2</sub> and rate-optimized Co<sub>9</sub>S<sub>8</sub> cathodes are developed based on the aqueous copper ion system. The charge-storage mechanism is systematically investigated through a series of ex-situ tests and density functional theory calculations, focusing on the reversible transitions of Co<sub>9</sub>S<sub>8</sub>→Cu<sub>7</sub>S<sub>4</sub>→Cu<sub>9</sub>S<sub>5</sub>/Cu<sub>1.8</sub>S and CoS<sub>2</sub>→Cu<sub>7</sub>S<sub>4</sub>→Cu<sub>2</sub>S, which are associated with the redox reactions of Cu<sup>2+</sup>/Cu<sup>+</sup>‖Co<sup>2+</sup>/Co and Cu<sup>2+</sup>/Cu<sup>+</sup>‖S<sub>2</sub><sup>2−</sup>/S<sup>2−</sup>, respectively. The electrochemical results show that CoS<sub>2</sub> can exhibit a superior capacity of 619 mAh g<sup>−1</sup> at 1 A g<sup>−1</sup> after 400 cycles, while Co<sub>9</sub>S<sub>8</sub> maintains an outstanding rate performance of 497 mAh g<sup>−1</sup> at 10 A g<sup>−1</sup> (the retention rate is 95% compared to 521 mAh g<sup>−1</sup> at 1 A g<sup>−1</sup>). As a proof of concept, an advanced CoS<sub>2</sub>//Zn hybrid aqueous battery demonstrates a working voltage of 1.20 V and a specific energy of 663 Wh kg<sub>cathode</sub><sup>−1</sup>. This work provides an alternative direction for developing sulfide cathodes in energetic aqueous metal batteries.\",\"PeriodicalId\":16154,\"journal\":{\"name\":\"Journal of Materials Science & Technology\",\"volume\":\"18 1\",\"pages\":\"\"},\"PeriodicalIF\":11.2000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science & Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jmst.2024.08.071\",\"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":"Journal of Materials Science & Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jmst.2024.08.071","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}
引用次数: 0

摘要

中性水溶液金属电池具有成本效益高、不易燃等特点,在大规模储能方面具有巨大潜力,但其实际应用却受到阴极材料比容量有限(小于 500 mAh g-1)的阻碍。本文基于水性铜离子体系开发了容量导向型 CoS2 和速率优化型 Co9S8 阴极。通过一系列原位测试和密度泛函理论计算,重点研究了 Co9S8→Cu7S4→Cu9S5/Cu1.8S 和 CoS2→Cu7S4→Cu2S 的电荷存储机理,这些机理分别与 Cu2+/Cu+‖Co2+/Co 和 Cu2+/Cu+‖S22-/S2- 的氧化还原反应有关。电化学结果表明,CoS2 在 1 A g-1 循环 400 次后可显示出 619 mAh g-1 的超强容量,而 Co9S8 在 10 A g-1 循环时可保持 497 mAh g-1 的出色速率性能(与 1 A g-1 循环时的 521 mAh g-1 相比,保持率为 95%)。作为概念验证,先进的 CoS2//Zn 混合水电池的工作电压为 1.20 V,比能量为 663 Wh kgcathode-1。这项研究为在高能水性金属电池中开发硫化物阴极提供了另一个方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Deciphering the multi-electron redox chemistry of metal-sulfide electrode toward advanced aqueous Cu ion storage
While neutral aqueous metal batteries, featuring cost-effectiveness and non-flammability, hold significant potential for large-scale energy storage, their practical application is hampered by the limited specific capacity of cathode materials (less than 500 mAh g−1). Herein, capacity-oriented CoS2 and rate-optimized Co9S8 cathodes are developed based on the aqueous copper ion system. The charge-storage mechanism is systematically investigated through a series of ex-situ tests and density functional theory calculations, focusing on the reversible transitions of Co9S8→Cu7S4→Cu9S5/Cu1.8S and CoS2→Cu7S4→Cu2S, which are associated with the redox reactions of Cu2+/Cu+‖Co2+/Co and Cu2+/Cu+‖S22−/S2−, respectively. The electrochemical results show that CoS2 can exhibit a superior capacity of 619 mAh g−1 at 1 A g−1 after 400 cycles, while Co9S8 maintains an outstanding rate performance of 497 mAh g−1 at 10 A g−1 (the retention rate is 95% compared to 521 mAh g−1 at 1 A g−1). As a proof of concept, an advanced CoS2//Zn hybrid aqueous battery demonstrates a working voltage of 1.20 V and a specific energy of 663 Wh kgcathode−1. This work provides an alternative direction for developing sulfide cathodes in energetic aqueous metal batteries.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Materials Science & Technology
Journal of Materials Science & Technology 工程技术-材料科学:综合
CiteScore
20.00
自引率
11.00%
发文量
995
审稿时长
13 days
期刊介绍: Journal of Materials Science & Technology strives to promote global collaboration in the field of materials science and technology. It primarily publishes original research papers, invited review articles, letters, research notes, and summaries of scientific achievements. The journal covers a wide range of materials science and technology topics, including metallic materials, inorganic nonmetallic materials, and composite materials.
期刊最新文献
Corrigendum to “Vertical graphene-decorated carbon nanofibers establishing robust conductive networks for fiber-based stretchable strain sensors” [Journal of Materials Science & Technology 200 (2024) 52–60] Recent progress of Ti3C2Tx MXene-based layered films for electromagnetic interference shielding Janus-inspired alternating architecture CNF/MXene/ZnFe2O4@PANI composite films with outstanding electromagnetic interference shielding and Joule heating Mechanistic insights into cluster strengthening and grain refinement toughening in fully oxidized AgMgNi alloys Ti3C2Tx/CuO heterojunction for ultrafast photonics
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1