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Issue 7, 2020
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A synergistic Bi2S3/MXene composite with enhanced performance as an anode material of sodium-ion batteries

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Abstract

The electrochemical performance of a material is largely impeded by the size and conductivity of the material. To overcome the defects, high-capacity nanoscale Bi2S3 particles and highly conductive Ti3C2Tx sheets have been composited and applied to sodium-ion batteries for the first time. The Bi2S3 nanoparticles are uniformly anchored on the MXene sheets, forming a sandwich-like stereochemical structure, which can alleviate the volume expansion and agglutination, reduce sodium ion migration path, and increase the active areas. Furthermore, the MXene nanosheets provide a conductive skeleton and accelerate the sodium ion and electron transition. Benefiting from the synergistic effect of the Bi2S3 nanoparticles on the MXene flakes, the Bi2S3/MXene composite exhibits excellent electrochemical properties for sodium-ion batteries.

Graphical abstract: A synergistic Bi2S3/MXene composite with enhanced performance as an anode material of sodium-ion batteries

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Article information


Submitted
02 Dec 2019
Accepted
15 Jan 2020
First published
16 Jan 2020

New J. Chem., 2020,44, 3072-3077
Article type
Paper

A synergistic Bi2S3/MXene composite with enhanced performance as an anode material of sodium-ion batteries

Q. Yang, W. Gao, W. Zhong, M. Tao, Y. Qi, S. Bao and M. Xu, New J. Chem., 2020, 44, 3072
DOI: 10.1039/C9NJ05986E

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