TITLE

Thermodynamic and Kinetic Analysis of Low-temperature Thermal Reduction of Graphene Oxide

AUTHOR(S)
Kuibo Yin; Haitao Li; Yidong Xia; Hengchang Bi; Jun Sun; Zhiguo Liu; Litao Sun
PUB. DATE
March 2011
SOURCE
Nano-Micro Letters;2011, Vol. 3 Issue 1, p51
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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 167 kJ/mol (1.73 eV/atom).
ACCESSION #
65048587

 

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