Electrical Conductivity of Chemically Reduced Graphene Powders under Compression
- Electrical Conductivity of Chemically Reduced Graphene Powders under Compression
- 아딜라; 남승웅; 오경아; 박민
- Synthetic and natural graphite; Graphene; Carbon nanotubes; Electrical conductivity under compression
- Issue Date
- Carbon letters
- VOL 11, NO 2, 90-95
- Carbon materials such as graphite and graphene exhibit high electrical conductivity. We examined the electrical
conductivity of synthetic and natural graphene powders after the chemical reduction of synthetic and natural graphite oxide
from synthetic and natural graphite. The trend of electrical conductivity of both graphene (synthetic and natural) was
compared with different graphite materials (synthetic, natural, and expanded) and carbon nanotubes (CNTs) under
compression from 0.3 to 60 MPa. We found that synthetic graphene showed a marked increment in electrical conductivity
compared to natural graphene. Interestingly, the total increment in electrical conductivity was greater for denser graphite;
however, an opposite behavior was observed in nanocarbon materials such as graphene and CNTs, probably due to the
differing layer arrangement of nanocarbon materials.
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