A simple and efficient method to prepare exfoliated and reduced graphene nanosheets by vacuum oven

Alzahrany, A. and Rehman, I.U. (2021) A simple and efficient method to prepare exfoliated and reduced graphene nanosheets by vacuum oven. Journal of Materials Research, 36 (14). pp. 3031-3040. ISSN 0884-2914

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Abstract

We report fabrication of reduced graphene oxides (RGO) papers using thermal reduction by vacuum-assisted for thermal exfoliation and in situ reduction of graphene oxide (GO) at temperatures as low as 180 °C. The conjugated sp2-carbon structure of GO was restored throughout the reduction process, and the thermal stability of the RGO papers was substantially better than that of the GO paper, according to Raman analysis and thermogravimetry analysis (TGA). The RGO paper that was reduced for 24 h exhibited the highest electrical conductivity of (29.3 ± 0.4) × 103 S m−1 at 180 °C. As the reduction degree of the RGO paper deepens, the thickness of the sample gradually decreases, indicating that the conduction type of RGO paper can be controlled by regulating the reduction degree. Thus, we demonstrate a simplified fabrication way for flexible conducting RGO paper of significant application potential as electrodes in a variety of devices.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Materials Research
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
168087
Deposited By:
Deposited On:
28 Mar 2022 09:55
Refereed?:
Yes
Published?:
Published
Last Modified:
04 May 2022 02:11