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Direct solid-state nucleation and charge-transport dynamics of alkali metal-intercalated M2Mo6S6 (M = K, Rb, Cs) nanorods

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Abstract

Microwave-assisted solid-state heating has been employed to control anisotropic growth of M2Mo6S6 (M = K, Rb, Cs) pseudo-Chevrel phase nanorods without a growth template for the first time. Pronounced preferential crystal nucleation along the hexagonal axis is observed, and electrochemical methods are implemented to elucidate viability for employment of these materials in energy storage and energy conversion systems. It is observed that these nanomaterials exhibit moderate and under-explored capacitive behavior with charge storage capabilities ranging from 2–8 F g−1 in strongly acidic aqueous electrolyte, as well as promising electrochemical performance, evolving hydrogen gas at 10 mA cm−2 under an applied bias of less than 300 mV vs. RHE.

Graphical abstract: Direct solid-state nucleation and charge-transport dynamics of alkali metal-intercalated M2Mo6S6 (M = K, Rb, Cs) nanorods

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Article information


Submitted
02 Apr 2020
Accepted
03 Jun 2020
First published
04 Jun 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Communication

Direct solid-state nucleation and charge-transport dynamics of alkali metal-intercalated M2Mo6S6 (M = K, Rb, Cs) nanorods

J. T. Perryman, A. R. Kulkarni and J. M. Velázquez, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC01674H

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