Hierarchical assembly of graphene/polyaniline nanostructures to synthesize free-standing supercapacitor electrode
Free-standing composite films based on graphene/polyaniline (PANI) nanostructure were synthesized for supercapacitor application. First, polyaniline nanospheres were prepared by microemulsion polymerization, followed by the incorporation of graphene oxide nanosheets by hierarchical organization. The...
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| Veröffentlicht in: | Composites science and technology 2014-06, Vol.98, p.1-8 |
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| container_title | Composites science and technology |
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| creator | Hassan, Mahbub Reddy, Kakarla Raghava Haque, Enamul Faisal, Shaikh Nayeem Ghasemi, Samira I. Minett, Andrew Gomes, Vincent G. |
| description | Free-standing composite films based on graphene/polyaniline (PANI) nanostructure were synthesized for supercapacitor application. First, polyaniline nanospheres were prepared by microemulsion polymerization, followed by the incorporation of graphene oxide nanosheets by hierarchical organization. The cationic PANI nanospheres were attached to the anionic GO sheets by electrostatic interaction and hierarchical deposition of GO/PANI nanostructures on a membrane filter via targeted self-assembly. Subsequent in situ chemical reduction of GO using hydroiodic acid produced well-defined graphene/PANI nanostructures having interpenetrating network with 3D open structure. The in situ GO reduction enabled keeping the hierarchical organization intact. The flexible graphene/PANI film produced was tested as a supercapacitor electrode using voltammograms and Nyquist analysis. The electro-capacitance of the film (448F/g) was enhanced by 60% through the synergistic combination of graphene and PANI nanostructures. About 81% capacity retention was achieved for the composite compared to 38% for PANI alone after subjecting the samples to 5000 cyclic operations. |
| doi_str_mv | 10.1016/j.compscitech.2014.04.007 |
| format | Article |
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The flexible graphene/PANI film produced was tested as a supercapacitor electrode using voltammograms and Nyquist analysis. The electro-capacitance of the film (448F/g) was enhanced by 60% through the synergistic combination of graphene and PANI nanostructures. About 81% capacity retention was achieved for the composite compared to 38% for PANI alone after subjecting the samples to 5000 cyclic operations.</description><identifier>ISSN: 0266-3538</identifier><identifier>EISSN: 1879-1050</identifier><identifier>DOI: 10.1016/j.compscitech.2014.04.007</identifier><identifier>CODEN: CSTCEH</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>A. Nanocomposites ; Applied sciences ; B. Electrical properties ; Capacitors ; Composites ; D. Raman spectroscopy ; D. Scanning electron microscopy ; D. X-ray diffraction ; Electric, optical and optoelectronic circuits ; Electrodes ; Electronics ; Exact sciences and technology ; Forms of application and semi-finished materials ; Graphene ; Nanostructure ; Neural networks ; Organizations ; Polyanilines ; Polymer industry, paints, wood ; Self assembly ; Supercapacitors ; Technology of polymers</subject><ispartof>Composites science and technology, 2014-06, Vol.98, p.1-8</ispartof><rights>2014 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c483t-58d4947bce249685228bb2e93a83942ea8bd01659a1785a4c4842bcdf3d2c513</citedby><cites>FETCH-LOGICAL-c483t-58d4947bce249685228bb2e93a83942ea8bd01659a1785a4c4842bcdf3d2c513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0266353814001134$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28547270$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hassan, Mahbub</creatorcontrib><creatorcontrib>Reddy, Kakarla Raghava</creatorcontrib><creatorcontrib>Haque, Enamul</creatorcontrib><creatorcontrib>Faisal, Shaikh Nayeem</creatorcontrib><creatorcontrib>Ghasemi, Samira</creatorcontrib><creatorcontrib>I. Minett, Andrew</creatorcontrib><creatorcontrib>Gomes, Vincent G.</creatorcontrib><title>Hierarchical assembly of graphene/polyaniline nanostructures to synthesize free-standing supercapacitor electrode</title><title>Composites science and technology</title><description>Free-standing composite films based on graphene/polyaniline (PANI) nanostructure were synthesized for supercapacitor application. First, polyaniline nanospheres were prepared by microemulsion polymerization, followed by the incorporation of graphene oxide nanosheets by hierarchical organization. The cationic PANI nanospheres were attached to the anionic GO sheets by electrostatic interaction and hierarchical deposition of GO/PANI nanostructures on a membrane filter via targeted self-assembly. Subsequent in situ chemical reduction of GO using hydroiodic acid produced well-defined graphene/PANI nanostructures having interpenetrating network with 3D open structure. The in situ GO reduction enabled keeping the hierarchical organization intact. The flexible graphene/PANI film produced was tested as a supercapacitor electrode using voltammograms and Nyquist analysis. The electro-capacitance of the film (448F/g) was enhanced by 60% through the synergistic combination of graphene and PANI nanostructures. About 81% capacity retention was achieved for the composite compared to 38% for PANI alone after subjecting the samples to 5000 cyclic operations.</description><subject>A. Nanocomposites</subject><subject>Applied sciences</subject><subject>B. Electrical properties</subject><subject>Capacitors</subject><subject>Composites</subject><subject>D. Raman spectroscopy</subject><subject>D. Scanning electron microscopy</subject><subject>D. X-ray diffraction</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electrodes</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Graphene</subject><subject>Nanostructure</subject><subject>Neural networks</subject><subject>Organizations</subject><subject>Polyanilines</subject><subject>Polymer industry, paints, wood</subject><subject>Self assembly</subject><subject>Supercapacitors</subject><subject>Technology of polymers</subject><issn>0266-3538</issn><issn>1879-1050</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkUFr3DAQhUVpodu0_0E5BHrxRpIlSz6WpU0KgV5yF7I8zmrxSo5GLmx_fbVsCL2lMDCXb94b3iPkmrMtZ7y7PWx9Oi7oQwG_3wrG5ZbVYfod2XCj-4Yzxd6TDRNd17SqNR_JJ8QDq4TqxYY83wfILvt98G6mDhGOw3yiaaJP2S17iHC7pPnkYphDBBpdTFjy6suaAWlJFE-x7AHDH6BTBmiwuDiG-ERxXSB7t7j6W8oUZvAlpxE-kw-TmxG-vOwr8vjj--Puvnn4dfdz9-2h8dK0pVFmlL3Ugwch-84oIcwwCOhbZ9peCnBmGGsAqndcG-VkvZJi8OPUjsIr3l6RrxfZJafnFbDYY0AP8-wipBUt77TuJeNGvI2qTnPRacEq2l9QnxNihskuORxdPlnO7LkQe7D_FGLPhVhWh-l6e_Ni47CGPWUXfcBXAWGU1EKfPXYXDmo6v2s9tqpB9DCGXDO0Ywr_4fYXwfSqFw</recordid><startdate>20140627</startdate><enddate>20140627</enddate><creator>Hassan, Mahbub</creator><creator>Reddy, Kakarla Raghava</creator><creator>Haque, Enamul</creator><creator>Faisal, Shaikh Nayeem</creator><creator>Ghasemi, Samira</creator><creator>I. 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Minett, Andrew</au><au>Gomes, Vincent G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hierarchical assembly of graphene/polyaniline nanostructures to synthesize free-standing supercapacitor electrode</atitle><jtitle>Composites science and technology</jtitle><date>2014-06-27</date><risdate>2014</risdate><volume>98</volume><spage>1</spage><epage>8</epage><pages>1-8</pages><issn>0266-3538</issn><eissn>1879-1050</eissn><coden>CSTCEH</coden><abstract>Free-standing composite films based on graphene/polyaniline (PANI) nanostructure were synthesized for supercapacitor application. First, polyaniline nanospheres were prepared by microemulsion polymerization, followed by the incorporation of graphene oxide nanosheets by hierarchical organization. The cationic PANI nanospheres were attached to the anionic GO sheets by electrostatic interaction and hierarchical deposition of GO/PANI nanostructures on a membrane filter via targeted self-assembly. Subsequent in situ chemical reduction of GO using hydroiodic acid produced well-defined graphene/PANI nanostructures having interpenetrating network with 3D open structure. The in situ GO reduction enabled keeping the hierarchical organization intact. The flexible graphene/PANI film produced was tested as a supercapacitor electrode using voltammograms and Nyquist analysis. The electro-capacitance of the film (448F/g) was enhanced by 60% through the synergistic combination of graphene and PANI nanostructures. About 81% capacity retention was achieved for the composite compared to 38% for PANI alone after subjecting the samples to 5000 cyclic operations.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.compscitech.2014.04.007</doi><tpages>8</tpages></addata></record> |
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| subjects | A. Nanocomposites Applied sciences B. Electrical properties Capacitors Composites D. Raman spectroscopy D. Scanning electron microscopy D. X-ray diffraction Electric, optical and optoelectronic circuits Electrodes Electronics Exact sciences and technology Forms of application and semi-finished materials Graphene Nanostructure Neural networks Organizations Polyanilines Polymer industry, paints, wood Self assembly Supercapacitors Technology of polymers |
| title | Hierarchical assembly of graphene/polyaniline nanostructures to synthesize free-standing supercapacitor electrode |
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