Low crystalline 1T-MoS2@S-doped carbon hollow spheres as an anode material for Lithium-ion battery.
J Colloid Interface Sci
; 601: 411-417, 2021 Nov.
Article
em En
| MEDLINE
| ID: mdl-34091304
ABSTRACT
A low crystalline 1T-MoS2@S-doped carbon (MoS2@SC) composite was successfully synthesized via a facile hydrothermal process. The composite is comprised by few-layer 1T-MoS2 nanosheets covered by an amorphous carbon layer with an expanded interlayer d-spacing of 1.01 nm. This structure is conducive to the fast transport of lithium-ions and volume accommodation during the charge-discharge process when the composite is applied as an anode material for LIBs. Additionally, the high conductivity and layered structure of 1T-MoS2 also facilitate fast of ion/electron transport, contributing to the improvement of the electrochemical properties. Therefore, this material demonstrated a high rate performance and excellent cycling stability, with the capacities of 847 and 622 mA h g-1 achieved at the current densities of 0.2 A g-1 and 2 A g-1, respectively. Even at a larger current density of 2 A g-1, MoS2@SC delivered a high reversible capacity of 659 mA h g-1 with an average capacity loss of 0.006% per cycle after 500 cycles.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2021
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Article