Journal
CARBON
Volume 49, Issue 6, Pages 2158-2161Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.01.048
Keywords
-
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan
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Hollow carbon fibers were fabricated from solid poly(vinyl alcohol) (PVA) fibers, with the aid of an iodine pretreatment followed by stabilization. Iodination converted the chemical structure of PVA to polyene form due to dehydration reaction, and stabilization of heat treatment at 200 degrees C in air provided insolubilization of iodinated PVA fibers. These processes extremely enhanced the carbon yield and enabled to obtain intact carbon fiber. By selective iodination and subsequent stabilization within the fiber cross-section close to the fiber surface, hollow carbon fibers were made through the carbonization. (C) 2011 Elsevier Ltd. All rights reserved.
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