Preparation and Characterization of a Flexible rGO–PTFE Film for a Supercapacitor Current Collector
| Autor: | O. V. Koplak, S. A. Baskakov, Nadezhda N. Dremova, Eugene N. Kabachkov, Alexey R. Tameev, Yuriy N. Parkhomenko, Y.M. Shulga, Alexandre Michtchenko, Valery A. Kazakov, Y.V. Baskakova, Anatoly S. Lobach |
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| Rok vydání: | 2020 |
| Předmět: |
Supercapacitor
Materials science Graphene Scanning electron microscope Surfaces and Interfaces Current collector Condensed Matter Physics law.invention Contact angle symbols.namesake X-ray photoelectron spectroscopy Chemical engineering law Electrochemistry symbols General Materials Science Wetting Raman spectroscopy Spectroscopy |
| Zdroj: | Langmuir. 36:8680-8686 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.0c00141 |
| Popis: | A mixture of water suspensions of graphene oxide (GO) and polytetrafluoroethylene (PTFE) was used to make the films GO-PTFE (50:50). They became conductive (2.0-2.8 S/cm) while maintaining flexibility after reduction with hydrazine and subsequent annealing at 370 °C. The structure and morphology of the reduced films (rGO-PTFE) are examined in detail by means of a number of techniques such as scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, Raman, and contact angle wetting. The results of the films tested as current collectors in a metal-free supercapacitor with electrodes from microwave exfoliated GO and an acid (1 M H2SO4) electrolyte are presented. |
| Databáze: | OpenAIRE |
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