Polyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors

Kumar, Nanjundan Ashok, Choi, Hyun-Jung, Shin, Yeon Ran, Chang, Dong Wook, Dai, Liming and Baek, Jong-Beom (2012) Polyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors. ACS Nano, 6 2: 1715-1723. doi:10.1021/nn204688c


Author Kumar, Nanjundan Ashok
Choi, Hyun-Jung
Shin, Yeon Ran
Chang, Dong Wook
Dai, Liming
Baek, Jong-Beom
Title Polyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors
Journal name ACS Nano   Check publisher's open access policy
ISSN 1936-0851
1936-086X
Publication date 2012-02-28
Sub-type Article (original research)
DOI 10.1021/nn204688c
Open Access Status Not yet assessed
Volume 6
Issue 2
Start page 1715
End page 1723
Total pages 9
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
An alternative and effective route to prepare conducting polyaniline-grafted reduced graphene oxide (PANi-g-rGO) composite with highly enhanced properties is reported. In order to prepare PANi-g-rGO, amine-protected 4-aminophenol was initially grafted to graphite oxide (GO) via acyl chemistry where a concomitant partial reduction of GO occurred due to the refluxing and exposure of GO to thionyl chloride vapors and heating. Following the deprotection of amine groups, an in situ chemical oxidative grafting of aniline in the presence of an oxidizing agent was carried out to yield highly conducting PANi-g-rGO. Electron microscopic studies demonstrated that the resultant composite has fibrillar morphology with a room-temperature electrical conductivity as high as 8.66 S/cm and capacitance of 250 F/g with good cycling stability.
Keyword Composite
Electrochemistry
Exfoliation
Graphene oxide
Polyaniline
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

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