An
electrostatic forces (EF)-controlled electric unzipping method
was developed for producing graphene nanoribbon (GNR) from both single-
(SWCNT) and multi-walled carbon nanotubes (MWCNT). Experimentally,
an electrostatic generator was employed by taking its two electrodes
with opposite charges to alternatively link to the metal vessel and
the CNT/water solution to form two oppositely electric cycles corresponding
to the EF in enhancement or reduction, respectively. Transmission
electron microscopy images showed that this applied method can unzip
both the SWCNT and MWCNT into relative GNRs. During the EF-controlled
electric unzipping process, the concentration increases and EF-controlled
in reduction model can produce GNRs with enhanced width and quality.
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