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Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity
Large-area freestanding graphene films are facilely fabricated by reducing graphene oxide films on recyclable Cu foils in H(2)-containing atmosphere at high temperature. Cu might act as efficient catalysts for considerably improved reduction of graphene oxide according to the SEM, EDS, XRD, XPS, Ram...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4585894/ https://www.ncbi.nlm.nih.gov/pubmed/26404674 http://dx.doi.org/10.1038/srep14260 |
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author | Huang, Sheng-Yun Zhao, Bo Zhang, Kai Yuen, Matthew M. F. Xu, Jian-Bin Fu, Xian-Zhu Sun, Rong Wong, Ching-Ping |
author_facet | Huang, Sheng-Yun Zhao, Bo Zhang, Kai Yuen, Matthew M. F. Xu, Jian-Bin Fu, Xian-Zhu Sun, Rong Wong, Ching-Ping |
author_sort | Huang, Sheng-Yun |
collection | PubMed |
description | Large-area freestanding graphene films are facilely fabricated by reducing graphene oxide films on recyclable Cu foils in H(2)-containing atmosphere at high temperature. Cu might act as efficient catalysts for considerably improved reduction of graphene oxide according to the SEM, EDS, XRD, XPS, Raman and TGA results. Comparing to the graphene films with ~30 μm thickness reduced without Cu substrate at 900 °C, the thermal conductivity and electrical conductivity of graphene films reduced on Cu foils are enhanced about 140% to 902 Wm(−1)K(−1) and 3.6 × 10(4) S/m, respectively. Moreover, the graphene films demonstrate superior thermal conductivity of ~1219 Wm(−1)K(−1) as decreasing the thickness of films to ~10 μm. The graphene films also exhibit excellent mechanical properties and flexibility. |
format | Online Article Text |
id | pubmed-4585894 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45858942015-09-30 Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity Huang, Sheng-Yun Zhao, Bo Zhang, Kai Yuen, Matthew M. F. Xu, Jian-Bin Fu, Xian-Zhu Sun, Rong Wong, Ching-Ping Sci Rep Article Large-area freestanding graphene films are facilely fabricated by reducing graphene oxide films on recyclable Cu foils in H(2)-containing atmosphere at high temperature. Cu might act as efficient catalysts for considerably improved reduction of graphene oxide according to the SEM, EDS, XRD, XPS, Raman and TGA results. Comparing to the graphene films with ~30 μm thickness reduced without Cu substrate at 900 °C, the thermal conductivity and electrical conductivity of graphene films reduced on Cu foils are enhanced about 140% to 902 Wm(−1)K(−1) and 3.6 × 10(4) S/m, respectively. Moreover, the graphene films demonstrate superior thermal conductivity of ~1219 Wm(−1)K(−1) as decreasing the thickness of films to ~10 μm. The graphene films also exhibit excellent mechanical properties and flexibility. Nature Publishing Group 2015-09-25 /pmc/articles/PMC4585894/ /pubmed/26404674 http://dx.doi.org/10.1038/srep14260 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Huang, Sheng-Yun Zhao, Bo Zhang, Kai Yuen, Matthew M. F. Xu, Jian-Bin Fu, Xian-Zhu Sun, Rong Wong, Ching-Ping Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title | Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title_full | Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title_fullStr | Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title_full_unstemmed | Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title_short | Enhanced Reduction of Graphene Oxide on Recyclable Cu Foils to Fabricate Graphene Films with Superior Thermal Conductivity |
title_sort | enhanced reduction of graphene oxide on recyclable cu foils to fabricate graphene films with superior thermal conductivity |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4585894/ https://www.ncbi.nlm.nih.gov/pubmed/26404674 http://dx.doi.org/10.1038/srep14260 |
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