- Title
- Graphite-Mediated Microwave-Exfoliated Graphene Fluoride as Supercapacitor Electrodes
- Creator
- Canever, Nicoloò; Chen, Xianjue; Wojcik, Mark; Zhang, Hui; Dai, Xinchen; Dubois, Marc; Nann, Thomas
- Relation
- Nanomaterials Vol. 12, Issue 11, no. 1796
- Publisher Link
- http://dx.doi.org/10.3390/nano12111796
- Publisher
- MDPI AG
- Resource Type
- journal article
- Date
- 2022
- Description
- A graphite-mediated microwave-based strategy was used for solid-state exfoliation of graphite fluoride in a few seconds, followed by a simple yet efficient separation to obtain exfoliated materials based on the density difference between graphite and graphene fluoride in solvent. The microwave-exfoliated graphene fluoride was a few layers thick and electrically conductive. The electrochemical testing of pouch-cell supercapacitors assembled by using the exfoliated graphene fluoride electrodes and a novel microemulsion-based electrolyte showed reasonable performance with typical electrical double-layer capacitance behavior and good rate capability (gravimetric specific capacitance: 3.2 F g−1 at 500 mA g−1 and 3.1 F g−1 at 5000 mA g−1). The BET specific surface areas of the as-exfoliated graphene fluoride are ~60–80 m2 g−1, which could be increased by activation using this simple yet versatile microwave-based method for further improvements on the electrochemical performance.
- Subject
- graphene; graphene fluoride; microwave; exfoliation; supercapacitors
- Identifier
- http://hdl.handle.net/1959.13/1478427
- Identifier
- uon:50173
- Identifier
- ISSN:2079-4991
- Rights
- x
- Language
- eng
- Reviewed
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