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- Publisher
- CSIRO Publishing
- Copyright
- Copyright © The Author(s). Published by CSIRO Publishing
- ISSN
- 0004-9425
- eISSN
- 1445-0038
- DOI
- 10.1071/CH16557
- Publisher site
- See Article on Publisher Site
Abstract
The aging effect on the proton conductivity of graphene oxide (GO) is investigated. Characterizations of oxygenated functional groups and measurement of the proton conductivity have been performed using freshly prepared GO and the same sample after preserving for three years under ambient conditions. Although GO retains its layered structure, a slight deviation in its powder X-ray diffraction (PXRD) pattern and Raman spectra upon aging implies some changes in the interlayer distance and functional groups. Decomposition of epoxy groups on aging has been recognised by X-ray photoelectron spectroscopy (XPS) analysis. The proton conductivity was found to be reduced by 25 after three years of aging.
Journal
Australian Journal of Chemistry – CSIRO Publishing
Published: Dec 22, 2016