MXenes公司
插层(化学)
阳极
材料科学
离子
化学工程
离子交换
化学
无机化学
纳米技术
锂(药物)
电极
内分泌学
工程类
物理化学
有机化学
医学
作者
Minxu Lu,Yaopeng Zhang,Junnan Chen,Wenjuan Han,Wei Zhang,Haibo Li,Xia Zhang,Bingsen Zhang
标识
DOI:10.1016/j.jechem.2020.03.002
摘要
Although MXenes is highly attractive as anode materials of lithium ion batteries, it sets a bottleneck for higher capacity of the V2CTx MXene 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 V2CTx MXene. 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 2D layered materials, and both the interlayer control and the surface modification will be achieved.
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