BROWSE

Related Researcher

Author's Photo

Bielawski, Christopher W.
Synthetic Materials & Macromolecules
Research Interests
  • Synthetic chemistry, materials science, polymer chemistry, catalysis, carbon-based materials

ITEM VIEW & DOWNLOAD

Highly Ordered and Dense Thermally Conductive Graphitic Films from a Graphene Oxide/Reduced Graphene Oxide Mixture

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Highly Ordered and Dense Thermally Conductive Graphitic Films from a Graphene Oxide/Reduced Graphene Oxide Mixture
Author
Akbari, AbozarCunning, Benjamin V.Joshi, Shalik R.Wang, ChunhuiCamacho-Mojica, Dulce C.Chatterjee, ShahanaModepalli, VijayakumarCahoon, CollinBielawski, Christopher W.Bakharev, PavelKim, Gun-HoRuoff, Rodney S.
Issue Date
2020-05
Publisher
ELSEVIER
Citation
MATTER, v.2, pp.1 - 9
Abstract
We report a new approach to making highly dense, oriented, and crystalline graphite films from heat-treated and pressed graphene oxide (G-O). By introducing small-diameter reduced graphene oxide (rG-O) flakes into the graphene oxide starting material, we found that after heat treatment at 3,000°C, the sample density and atomic order substantially improved over a film composed, at the outset, only of pure G-O flakes. A subsequent mechanical press increased the density but reduced the atomic order. A second 3,000°C heat treatment restored the graphitic structure with graphitization metrics exceeding even those of the first heat treatment. The optimized graphitic film with an original concentration of 15 wt % reduced G-O in G-O gave well-oriented graphitic films with a density of 2.1 g cm−3, cross-plane thermal conductivity of 5.65 W m−1 K−1, and in-plane thermal conductivity of 2,025 ± 25 W m−1 K−1.
URI
https://scholarworks.unist.ac.kr/handle/201301/31874
URL
https://www.sciencedirect.com/science/article/pii/S259023852030076X?via%3Dihub
DOI
10.1016/j.matt.2020.02.014
ISSN
2590-2393
Appears in Collections:
MEN_Journal Papers
PHY_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU