Catalyst-free fabrication of graphene nanosheets without substrates using multiwalled carbon nanotubes and a spark plasma sintering process |
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| Authors: | Ham Heon Park No-Hyung Kang Inpil Kim Hyoun Woo Shim Kwang Bo |
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| Institution: | Nanomaterial Research Center, H&H Co. LTD, Chungju National University, 50 Daehak-ro, Chungju-Si, Chungbuk, 330-702, Republic of Korea. hh1001@hanyang.ac.kr |
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| Abstract: | Catalyst-free graphene nanosheets without substrates were synthesized using pure solid carbon sources of multiwalled carbon nanotubes (MWCNTs) and a spark plasma sintering (SPS) process. Single and few-hundred-nanometer graphene nanosheets were formed from gas-phase carbon atoms which were directly evaporated from MWCNTs at a local high temperature. |
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