Facile Synthesis of Porous Silicon Nanofibers by Magnesium Reduction for Application in Lithium Ion Batteries
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Cho-2015-Facile Synthesis of.pdf
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Author(s)
Cho, Daehwan
Kim, Moonkyoung
Hwang, Jeonghyun
Park, Jay Hoon
Joo, Yong Lak
Jeong, Youngjin
Date Issued
October 2015
Journal
Nanoscale Research Letters
Publisher
Biomed Central Ltd.
Citation
Cho, Daehwan, Moonkyoung Kim, Jeonghyun Hwang, Jay Hoon Park, Yong Lak Joo, and Youngjin Jeong. “Facile Synthesis of Porous Silicon Nanofibers by Magnesium Reduction for Application in Lithium Ion Batteries.” Nanoscale Research Letters 10, no. 1 (October 28, 2015).
Version
Final published version
Abstract
We report a facile fabrication of porous silicon nanofibers by a simple three-stage procedure. Polymer/silicon precursor composite nanofibers are first fabricated by electrospinning, a water-based spinning dope, which undergoes subsequent heat treatment and then reduction using magnesium to be converted into porous silicon nanofibers. The porous silicon nanofibers are coated with a graphene by using a plasma-enhanced chemical vapor deposition for use as an anode material of lithium ion batteries. The porous silicon nanofibers can be mass-produced by a simple and solvent-free method, which uses an environmental-friendly polymer solution. The graphene-coated silicon nanofibers show an improved cycling performance of a capacity retention than the pure silicon nanofibers due to the suppression of the volume change and the increase of electric conductivity by the graphene.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
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DOI of Published Version
https://doi.org/10.1186/s11671-015-1132-8
