Towards Cs-ion supercapacitors: Cs intercalation in polymorph MoS2 as a model 2D electrode material

被引：20

作者：

Ali, Basant A. ^{[1
]}

Biby, Ahmed H. ^{[1
]}

Allam, Nageh K. ^{[1
]}

机构：

[1] Amer Univ Cairo, Sch Sci & Engn, Energy Mat Lab, New Cairo 11835, Egypt

来源：

CHEMICAL COMMUNICATIONS | 2021年 / 57卷 / 26期

关键词：

ALKALI-METAL; TRANSITION; LI; 1ST-PRINCIPLES; DYNAMICS;

D O I：

10.1039/d0cc07887e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Intercalation of alkali metals has proved to be an effective approach for the enhancement of the energy storage performance in layered-2D materials. However, the research so far has been limited to Li and Na ion intercalation with K ions being recently investigated. Although cesium (Cs) salts are highly soluble in water, Cs+ intercalation has been addressed neither in batteries nor in supercapacitors so far. Herein, we demonstrate the exceptional effect of Cs+ intercalation in MoS2 as a model 2D material to boost its performance as a potential supercapacitor electrode. Cs+ intercalation was found to stabilize the metastable 1T phase and increase the conductivity of the 2H and 3R phases. Cs+-Intercalated 1T MoS2 showed higher quantum capacitance (C-Q) than doped graphene.

引用

页码：3231 / 3234

页数：4

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