Journal
ELECTROCHIMICA ACTA
Volume 135, Issue -, Pages 94-100Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.05.012
Keywords
Nanostructured silicon; Magnesiothermic reduction; Carbon coating; Composite; Electrochemical performance
Categories
Funding
- National Basic Research Program of China [2013CB934001]
- National Natural Science Foundation of China [51101139]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
- Program for Innovative Research Team in University of Ministry of Education of China [IRT13037]
Ask authors/readers for more resources
In this work, nanostructured, monodisperse Si spheres have been prepared by a facile, controllable magnesiothermic reduction method using monodisperse SiO2 spheres as the precursor. The reaction conditions for magnesiothermic reduction have been optimized, yielding desired product and byproduct. Carbon coating on Si nanocrystals is performed by an easy chemical vapor deposition (CVD) method. The effect of carbon coating on electrochemical performance of Si is investigated. The results show that the original monodisperse spheric morphology of SiO2 can be preserved during magnesiothermic reduction and the cycling stability of Si can be enhanced by carbon coating. This work provides a facile, scalable method to synthesize nanostructured Si and Si/C composites. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available