Nano Archive

In situ growth of a carbon nanofiber/Si composite and its application in Li-ion storage

LIU, Hong-peng and QIAO, Wen-ming and ZHAN, Liang and LING, Li-cheng (2009) In situ growth of a carbon nanofiber/Si composite and its application in Li-ion storage. New Carbon Materials, 24 (2). 124 - 130.

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Official URL: http://www.sciencedirect.com/science/article/B8H10...

Abstract

A CNF/Si composite was synthesized in situ by growing carbon nanofibers on the surface of silicon particles through catalytic chemical vapor deposition. Microstructures of the composites were characterized by scanning and transmission electron microscopy, and X-ray diffraction. Electrochemical measurements indicated that the composite showed higher reversible capacity (1 042 mAh/g) and better cyclability than did a CNF-Si mixture prepared by simple mechanical milling. A structural evolution mechanism is proposed to explain the superior electrochemical performance of the CNF/Si composite electrode in comparison with the CNF-Si mixture. Scanning electron microscopy and ac impedance analysis indicated that the electrochemical performance can be attributed to the good contact of the in situ grown carbon fiber with the silicon particles.

Item Type:Article
Uncontrolled Keywords:Lithium ion battery; Anode material; Carbon nanofiber; Silicon
Subjects:Technology > Nanotechnology and energy applications
Material Science > Nanostructured materials
ID Code:8629
Deposited By:SPI
Deposited On:25 Mar 2010 22:06
Last Modified:25 Mar 2010 22:06

Repository Staff Only: item control page