Role of the Carbon Source in the Transformation of Amorphous Carbon to Graphene during Rapid Thermal Processing

Title
Role of the Carbon Source in the Transformation of Amorphous Carbon to Graphene during Rapid Thermal Processing
Authors
이광렬리 샤오웨이Yong ZhouAiying WangXiaowei Xu
Keywords
graphene; MD
Issue Date
2019-04
Publisher
Physical chemistry chemical physics : PCCP
Citation
VOL 21-9390
Abstract
A fast transfer-free synthesis of a graphene structure can be successfully achieved by Ni-catalysed transformation of amorphous carbon (a-C) during rapid thermal processing, but the role of the a-C structure in the a-C-to-graphene transformation is still unclear. In this paper, the dependence of the transformation of a-C to graphene, the diffusion behaviour of C, and the graphene quality on the a-C structures was comparatively investigated by reactive molecular dynamics simulation and Ni was selected as a catalyst. The results demonstrated that different a-C structures affected the diffusion of C into Ni layers and the re-dissolving behaviour of the grown graphitic structures, and thus dominated the remnant number of C atoms, which played a critical role in the formation and quality of graphene.
URI
http://pubs.kist.re.kr/handle/201004/70754
ISSN
1463-9076
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KIST Publication > Article
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