K alkalization promoted Ca intercalation in VCT MXene for enhanced Li storage

被引：11

作者：

Ming Lu ^{[1
,2
]}

Yaopeng Zhang ^{[3
,1
]}

Junnan Chen ^{[1
,4
]}

Wenjuan Han ^{[1
,2
]}

Wei Zhang ^{[5
]}

Haibo Li ^{[2
]}

Xia Zhang ^{[3
]}

Bingsen Zhang ^{[1
,4
]}

机构：

[1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences

[2] Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University

[3] Department of Chemistry, College of Science, Northeastern University

[4] School of Materials Science and Engineering, University of Science and Technology of China

[5] Electron Microscopy Center, Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, and International Center of Future Science, Jilin University

来源：

Journal of Energy Chemistry | 2020年 / 10期

关键词：

D O I：

暂无

中图分类号：

TM912 [蓄电池]; TB383.1 [];

学科分类号：

0808 ; 070205 ; 080501 ; 1406 ;

摘要：

Although MXenes is highly attractive as anode materials of lithium ion batteries, it sets a bottleneck for higher capacity of the V2CTxMXene due to the limited interlayer space and the derived surface terminations. Herein, the cation intercalation and ion-exchange were well employed to achieve a K+and Ca2+ intercalated V2CTxMXene. A larger interlayer distance and low F surface terminations were thereof obtained, which accelerates the ion transport and promotes the delicate surface of V2CTx MXene. As a result,a package of enhanced capacity, rate performance and cyclability can be achieved. Furthermore, the ion exchange approach can be extended to other 2 D layered materials, and both the interlayer control and the surface modification will be achieved.

引用

页码：358 / 364

页数：7

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