Catalyst and substrate-free synthesis of graphene nanosheets by unzipping C60 fullerene clusters using a pulse current method
- Authors
- Mirzaei, Ali; Oum, Wansik; Ham, Heon; Kwon, Yong Jung; Mosleh-Shirazi, Saareh; Shin, Ka Yoon; Yu, Dong Jae; Kang, Suk Woo; Kim, Eun Bi; Kim, Sang Sub; Kim, Htoun Woo
- Issue Date
- Oct-2022
- Publisher
- Elsevier Ltd
- Keywords
- Fullerene cluster; Graphene nanosheets; Pulse current method; Unzipping
- Citation
- Materials Science in Semiconductor Processing, v.149, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- Materials Science in Semiconductor Processing
- Volume
- 149
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/191176
- DOI
- 10.1016/j.mssp.2022.106831
- ISSN
- 1369-8001
- Abstract
- Transformation of carbon nanomaterials to different allotropes is a very promising approach for preparing a variety of carbon nanomaterials. Herein, we present the catalyst and substrate-free synthesis of graphene (G) nanosheets from fullerene (C60) clusters. G nanosheets were formed from an unzipping process of fullerene clusters using a direct pulse current via a pulsed current sintering method, in which carbon atoms were evaporated from fullerenes as a result of generation of locally high temperatures. Fullerene clusters and G nanosheets were analyzed by different characterization tools and it was demonstrated that G can be successfully synthesized using transformation of fullerenes as starting materials without the need for catalyst or substrate.
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