What is it about?
The traditional Japanese paper, usually called washi, is made using microfibers from several kinds of plants including bamboo and hemp. The technique of washi-making has been passed down in the traditional manner in Japan. The main chemical component of washi microfibers is cellulose. Iodine is absorbed in washi microfibers by exposing the washi paper in an atmosphere of an iodine gas at room temperature for a given period. When the iodine-treated washi paper was carbonized at high temperatures, thermal decomposition decreased to some extent. As a result, carbon yield was higher, and the obtained carbonized paper was tough. It suggests that iodine prevents the washi-paper to some extent from thermally decomposing.
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Why is it important?
An Iodine treatment before carbonization of cellulosic materials is an efficient way to control thermal decomposition taking place at high temperatures.
Perspectives
Carbonized papers are able to use as one of the carbon materials, especially two-dimensional conductive materials.
Dr Mutsumasa Kyotani
Read the Original
This page is a summary of: Efficient preparation of carbon papers by pyrolysis of iodine-treated Japanese paper, Journal of Analytical and Applied Pyrolysis, May 2012, Elsevier,
DOI: 10.1016/j.jaap.2011.12.017.
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