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Vol. 3 No. 1 (2011)

Thermodynamic and Kinetic Analysis of Lowtemperature Thermal Reduction of Graphene Oxide

https://doi.org/10.1007/BF03353652
Kuibo Yin
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
Haitao Li
Department of Materials Science and Engineering, National Lab of Solid State Microstructure, Nanjing University, Nanjing 210093, P. R. China
Yidong Xia
Department of Materials Science and Engineering, National Lab of Solid State Microstructure, Nanjing University, Nanjing 210093, P. R. China
Hengchang Bi
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
Jun Sun
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China
Zhiguo Liu
Department of Materials Science and Engineering, National Lab of Solid State Microstructure, Nanjing University, Nanjing 210093, P. R. China
Litao Sun
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China

Corresponding Author: Litao Sun

slt@seu.edu.cn

Nano-Micro Letters, Vol. 3 No. 1 (2011), Article Number: 51-55

Abstract

The thermodynamic state and kinetic process of low-temperature deoxygenation reaction of graphene oxide (GO) have been investigated for better understanding on the reduction mechanism by using Differential Scanning Calorimetry (DSC), Thermogravimetry-Mass Spectrometry (TG-MS), and X-ray Photo-electron Spectroscopy (XPS). It is found that the thermal reduction reaction of GO is exothermic with degassing of CO2, CO and H2O. Graphene is thermodynamically more stable than GO. The deoxygenation reaction of GO is kinetically controlled and the activation energy for GO is calculated to be 167kJ/mol (1.73 eV/atom).

Keywords

Graphene oxide Activation energy Thermal deoxygenation
Yin, Kuibo, Haitao Li, Yidong Xia, Hengchang Bi, Jun Sun, Zhiguo Liu, and Litao Sun. 2011. “Thermodynamic and Kinetic Analysis of Lowtemperature Thermal Reduction of Graphene Oxide”. Nano-Micro Letters 3 (1):51-55. https://doi.org/10.1007/BF03353652.
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