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Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

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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
Allioux, Francois-MarieMerhebi, SalmaTang, JianboZhang, ChengchenMerenda, AndreaCai, ShengxiangGhasemian, Mohammad B.Rahim, Md ArifurMaghe, MaximeLim, SeanZhang, JinHyde, LachlanMayyas, MohannadCunning, Benjamin, VRuoff, Rodney S.Kalantar-Zadeh, Kourosh
Issue Date
2021-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CARBON, v.171, pp.938 - 945
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. (C) 2020 Elsevier Ltd. All rights reserved.
URI
https://scholarworks.unist.ac.kr/handle/201301/50042
URL
https://www.sciencedirect.com/science/article/pii/S0008622320309210?via%3Dihub
DOI
10.1016/j.carbon.2020.09.062
ISSN
0008-6223
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CHM_Journal Papers
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