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Electrochemical Formation of a Covalent-Ionic Stage-1 Graphite Intercalation Compound with Trifluoroacetic Acid

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Title
Electrochemical Formation of a Covalent-Ionic Stage-1 Graphite Intercalation Compound with Trifluoroacetic Acid
Author(s)
Bartosz Gurzeda; Kim, Tae In; Madi Arsakay; Myeonggi Choe; Sun Hwa Lee; Zonghoon Lee; Seung Kyu Min; Rodney S. Ruoff
Publication Date
2022-01
Journal
CHEMISTRY OF MATERIALS, v.34, no.1, pp.217 - 231
Publisher
AMER CHEMICAL SOC
Abstract
A pure stage-1 graphite intercalation compound (GIC) has been prepared by the electrochemical oxidation of graphite in trifluoroacetic acid (CF3COOH). During the CF3COOH-GIC formation, covalent as well as ionic bonds between the trifluoroacetic acid and graphite layers are formed. Electrochemical reduction of the stage-1 GIC leads to the deintercalation of ionically bonded intercalate, yielding the stage 2 covalent GIC. The interlayer spacing is 8.10 angstrom for stage-1 and 11.62 angstrom for stage-2 GIC. Further electrochemical oxidation of stage-1 CF3COOH-GIC does not lead to the exfoliation of the GIC product, and the GIC has relatively high stability in air.
URI
https://pr.ibs.re.kr/handle/8788114/11132
DOI
10.1021/acs.chemmater.1c03173
ISSN
0897-4756
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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