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摘要
An actuation triggered thermal exfoliation process was realized at a low temperature of 200 degrees C and atmospheric pressure. Densely packed graphene oxide (GO) paper was transformed into airy-like expanded architectures. The underlying mechanism was found to be similar to corn popping and attributed to the thermally-stimulated-actuation and molecules escape. Scanning electron microscopy, X-ray photoelectron spectra and electrochemical characterization showed that after the exfoliation process, the resultant popped graphene oxide (P-GO) exhibited highly expanded structures; the oxygen-containing groups were effectively removed; and the P-GO demonstrated good electrochemical capacitance performance with excellent stability.
- 出版日期2014-3
- 单位南阳理工学院; 兰州大学
