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

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 hi...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-04, Vol.57 (26), p.3231-3234
Main Authors: Ali, Basant A, Biby, Ahmed H, Allam, Nageh K
Format: Article
Language:English
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Summary: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 MoS 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 MoS showed higher quantum capacitance (C ) than doped graphene.
ISSN:1359-7345
1364-548X
DOI:10.1039/D0CC07887E