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Advanced Boiling-A Scalable Strategy for Self-Assembled Three-Dimensional Graphene

Authors
Kim, Ji HoonKim, Ji MinLee, Gil WonShim, Gyu HyeonLim, Sun TaekKim, Koung MoonThi To Nguyen VoKweon, BoyeonWongwises, SomchaiJerng, Dong WookKim, Moo HwanAhn, Ho Seon
Issue Date
23-Feb-2021
Publisher
AMER CHEMICAL SOC
Keywords
graphene; self-assembly; large scale; hierarchical; porous carbon; advanced boiling method
Citation
ACS NANO, v.15, no.2, pp 2839 - 2848
Pages
10
Journal Title
ACS NANO
Volume
15
Number
2
Start Page
2839
End Page
2848
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/51908
DOI
10.1021/acsnano.0c08806
ISSN
1936-0851
1936-086X
Abstract
Currently, researchers are paying much attention to the development of effective 3D graphene for applications in energy storage and environmental purification. Before commercialization, however, it is necessary to develop a method that allows for the large-scale production of such materials and enables good control over their structural and chemical properties. With this objective, we herein developed a simple method for the formation of large-scale (4 in. wafer) 3D graphene networks via the self-assembly of graphene sheets at a superheated liquid-vapor interface. The structural morphology of this porous network could be modified by controlling the vaporization rate, surface temperature of the target substrate, and amount of discharged colloids. The key mechanism behind this intriguing result was investigated by high-speed visualization of microdroplet behavior and extensive thermal analysis. This self-assembled 3D graphene had excellent electrical and mechanical properties. Our approach can be directly used for the mass production of graphene-based materials.
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공과대학 (에너지시스템 공학부)
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