Abstract
Graphene nanosheets were produced through electrolytic exfoliation of graphite foils in an aqueous solution containing an electrolyte, poly(sodium-4-styrenesulfonate). We confirmed the formation of graphene nanosheets by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy. The electrochemical performance of the graphene nanosheets was evaluated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. In order to address the feasibility of their use as lightweight anodes for a Li ion battery, we also present the direct assembly of graphene nanosheets onto metal current collectors and the fabrication of freestanding graphene nanosheets paper electrodes.
Original language | English |
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Pages (from-to) | 309-316 |
Number of pages | 8 |
Journal | Materials Chemistry and Physics |
Volume | 135 |
Issue number | 2-3 |
DOIs | |
Publication status | Published - 2012 Aug 15 |
Externally published | Yes |
Keywords
- Electron microscopy
- Microstructure
- Nanostructures
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics