Iron metal induced deoxygenation of graphite oxide nanosheets-insights on the capacitive properties of binder-free electrodes

Kumar, Nanjundan Ashok, Togami, Makoto, Oishi, Yudai, Tominaga, Masato, Takafuji, Makoto and Ihara, Hirotaka (2015) Iron metal induced deoxygenation of graphite oxide nanosheets-insights on the capacitive properties of binder-free electrodes. RSC Advances, 5 30: 23367-23373. doi:10.1039/c4ra15901b


Author Kumar, Nanjundan Ashok
Togami, Makoto
Oishi, Yudai
Tominaga, Masato
Takafuji, Makoto
Ihara, Hirotaka
Title Iron metal induced deoxygenation of graphite oxide nanosheets-insights on the capacitive properties of binder-free electrodes
Journal name RSC Advances   Check publisher's open access policy
ISSN 2046-2069
Publication date 2015-01
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c4ra15901b
Open Access Status Not Open Access
Volume 5
Issue 30
Start page 23367
End page 23373
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2016
Language eng
Abstract An inexpensive and one-step method for the de-oxygenation of graphite oxide (GO) using iron metal powder (Fe) in strongly acidic media is reported. Considering that Fe is non-toxic compared to hydrazine, this near room temperature method is very effective in removing most of the oxygen functionalities, as evidenced by extensive analytical characterizations. The as prepared few-layer reduced GO (rGO) were used as binder-free electrodes and their capacitive behaviours were evaluated in alkaline electrolyte. Results indicate that the electrodes exhibit comparable or much higher specific capacitance than that of the rGO produced via hydrazine or alcohol assisted reduction. With good cycling durability and electrochemical stability, the as prepared rGO electrodes show no signs of capacitance fading for 1000 cycles, thus being promising for the fabrication of high performance additives and binder free graphene supercapacitors.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Non HERDC
 
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