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Enhanced Electrochemical Performance of Heterogeneous Si/MoSi2 Anodes Prepared by a Magnesiothermic Reduction

Lili Wu, Juan Yang, Xiangyang Zhou, Jingjing Tang, Yongpeng Ren, Yang Nie

ACS Appl Mater Interfaces. 2016 Jul 6;8(26):16862-8.

PMID: 27300698

Abstract:

This work explores facile synthesis of heterogeneous Si/MoSi2 nanocomposites via a one-step magnesiothermic reduction. MoSi2 serves as a highly electrically conductive nanoparticle that has several advantages of electrochemical properties, which is formed through the absorption of local heat accumulation generated by magnesiothermic reduction. As a result, the Si/MoSi2 nanocomposites exhibit excellent electrochemical performance, showing initial charge capacity of 1933.9 mA h g(-1) at a rate of 0.2 C and retaining 85.2% after 150 cycles. This work using local heat accumulation generated by magnesiothermic reduction demonstrates a large-scale method for producing high-performance Si-based anode materials, which could provide referential significances for other materials.

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AP12136786 Molybdenum disilicide Molybdenum disilicide 12136-78-6 Price
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