Catalyst-free fabrication of graphene nanosheets without substrates using multiwalled carbon nanotubes and a spark plasma sintering process.
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.
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
Heon
H
Ham
No-Hyung
NH
Park
Inpil
I
Kang
Hyoun Woo
HW
Kim
Kwang Bo
KB
Shim