Issue 10, 2005
From the journal:

Green Chemistry

Formation of carbon micro-sphere chains by defluorination of PTFE in a magnesium and supercritical carbon dioxide system

Qiang Wang,a   Fangyu Caoa  and  Qianwang Chen*a  

* Corresponding authors

a Hefei National Laboratory for Physical Sciences at Microscale and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei, China
E-mail: cqw@ustc.edu.cn
Fax: +86-0551-3607292
Tel: +86-0551-3607292

Abstract

Well-crystallized carbon micro-spheres at the sub-micrometer scale were prepared by defluorination of polytetrafluoroethylene (PTFE) with metallic magnesium in supercritical carbon dioxide at 650 °C for 6 h. The products were characterized by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy and micro-Raman spectroscopy. FT-IR spectroscopy was used to monitor the extent of defluorination of PTFE. The produced carbon spheres tend to agglomerate to form chains and the possible mechanism of forming these carbon sphere chains in this system is tentatively discussed.

Graphical abstract: Formation of carbon micro-sphere chains by defluorination of PTFE in a magnesium and supercritical carbon dioxide system

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Article information

DOI
https://doi.org/10.1039/B506890H
Article type
Paper
Submitted
16 May 2005
Accepted
11 Aug 2005
First published
24 Aug 2005

Green Chem., 2005,7, 733-736

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Formation of carbon micro-sphere chains by defluorination of PTFE in a magnesium and supercritical carbon dioxide system

Q. Wang, F. Cao and Q. Chen, Green Chem., 2005, 7, 733 DOI: 10.1039/B506890H

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