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Cunning, Benjamin
다차원 탄소재료 연구단
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Carbonization of low thermal stability polymers at the interface of liquid metals

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Title
Carbonization of low thermal stability polymers at the interface of liquid metals
Author(s)
Francois-Marie Allioux; Salma Merhebi; Jianbo Tang; Chengchen Zhang; Andrea Merenda; Shengxiang Cai; Mohammad B. Ghasemian; Md Arifur Rahim; Maxime Maghe; Sean Lim; Jin Zhang; Lachlan Hyde; Mohannad Mayyas; Benjamin V. Cunning; Rodney S. Ruoff; Kourosh Kalantar-Zadeh
Publication Date
2021-01
Journal
CARBON, v.171, pp.938 - 945
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Gallium and many of its alloys remain in liquid phase across impressively wide temperature ranges. Here such liquid metals are proposed as reaction media for the carbonization of low thermal stability polymeric precursors at high temperatures. Plain and cross-linked polyvinyl alcohol are chosen as representatives of such polymers. We show that due to the immiscibility of organic carbons within the liquid metal phase, these polymers that would otherwise vaporize at elevated temperatures, can function as precursors for the formation of carbonaceous films. The thin polymeric films are placed in an intimate contact with the liquid metal surface before thermal processing and show amorphous to graphitic-like characteristics after carbonization. Graphitic-like properties were obtained when a high melting point graphitization catalyst, such as copper, was co-alloyed. The proposed work can be expanded to explore other metallic elements within the bulk of gallium-based alloys for the carbonization of polymeric precursors at large-scales.
URI
https://pr.ibs.re.kr/handle/8788114/7503
DOI
10.1016/j.carbon.2020.09.062
ISSN
0008-6223
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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