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Synthesis and characterization of covalently-grafted graphene-polyaniline nanocomposites and its use in a supercapacitor

IR@NPL: CSIR-National Physical Laboratory, New Delhi


Field	Value

Title	Synthesis and characterization of covalently-grafted graphene-polyaniline nanocomposites and its use in a supercapacitor

Creator	Kumar, Mukesh Singh, Kuldeep Dhawan, Sundeep K. Tharanikkarasu, Kannan Chung, Jin Suk Kong, Byung-Seon Kim, Eui Jung Hur, Seung Hyun

Subject	Earth Sciences Engineering (General)

Description	Synthesis and characterization of three dimensional, covalently-grafted graphene-polyaniline nanocomposites have been reported. To enhance the grafting of polyaniline and prevent the aggregation and damage of the sp(2) network of the graphene sheet, numerous nucleation sites are introduced by diazotization with p-aminobenzoic acid followed by amination using the Schmidt reaction. The covalent functionalization and reduction was confirmed by FT-IR, Raman, XRD, XPS and UV-vis spectroscopy. In situ oxidative polymerization of aniline was performed using enhanced amino-functionalized graphene in the presence of ammonium peroxide as an oxidizing agent. SEM results show that uniform fibrous polyaniline was grafted to the graphene layers. The resulting nanocomposites showed enhanced electrochemical performances when compared to pristine polyaniline and aminized graphene

Publisher	Elsevier

Date	2013-09

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://npl.csircentral.net/3012/1/Synthesis%20and%20characterization%20of%20covalently.pdf Kumar, Mukesh and Singh, Kuldeep and Dhawan, Sundeep K. and Tharanikkarasu, Kannan and Chung, Jin Suk and Kong, Byung-Seon and Kim, Eui Jung and Hur, Seung Hyun (2013) Synthesis and characterization of covalently-grafted graphene-polyaniline nanocomposites and its use in a supercapacitor. Chemical Engineering Journal, 231. pp. 397-405. ISSN 1385-8947

Relation	http://npl.csircentral.net/3012/