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Solution processed sun baked electrode material for flexible supercapacitors

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dc.contributor.author Kurra, Narendra
dc.contributor.author Kiruthika, S.
dc.contributor.author Kulkarni, G. U.
dc.date.accessioned 2017-02-21T06:59:34Z
dc.date.available 2017-02-21T06:59:34Z
dc.date.issued 2014
dc.identifier.citation Kurra, N; Kiruthika, S; Kulkarni, GU, Solution processed sun baked electrode material for flexible supercapacitors. RSC Advances 2014, 4 (39) 20281-20289, http://dx.doi.org/10.1039/c4ra02934h en_US
dc.identifier.citation RSC Advances en_US
dc.identifier.citation 4 en_US
dc.identifier.citation 39 en_US
dc.identifier.issn 2046-2069
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/2381
dc.description Restricted Access en_US
dc.description.abstract We report a new strategy for making electrode materials for supercapacitors based on a nanocrystalline Pd/carbon (nc-Pd/C) composite, obtained by thermolyzing a thin film of Pd hexadecylthiolate under sunlight. Thus obtained nc-Pd/C composite is porous (BET specific surface area, 67 m(2) g(-1)), hydrophilic (contact angle, 49 degrees) and of good electrical conductivity (resistivity similar to 2 mu Omega m), all these properties being highly suitable for supercapacitor electrodes. The autocatalytic nature of the nc-Pd/C composite was exploited for electrolessly depositing MnO2 bearing a nanowall morphology to serve as a pseudocapacitive material. Using MnO2/nc-Pd/C electrodes in 1 M Na2SO4, a specific capacitance of similar to 450 F g(-1) was obtained at 10 mV s(-1). An asymmetric supercapacitor was fabricated by employing MnO2/nc-Pd/C as a positive electrode and nc-Pd/C as a negative electrode, where the potential window could be enhanced to 1.8 V with an energy density of 86 W h kg(-1). The electrode precursor being a direct write lithography resist allowed fabrication of a planar micro-supercapacitor with an ionic liquid as electrolyte, exhibiting a cell capacitance of 8 mF cm(-2). As our recipe does not make use of an additional charge collecting layer and binder, nor does it use any external energy during fabrication, the only cost consideration is related to Pd; however, given the extremely small amount of Pd consumed per device (similar to 0.18 mg), it is highly cost effective. en_US
dc.description.uri http://dx.doi.org/10.1039/c4ra02934h en_US
dc.language.iso English en_US
dc.publisher Royal Society of Chemistry en_US
dc.rights @Royal Society of Chemistry, 2014 en_US
dc.subject Chemistry en_US
dc.subject Energy-Storage Devices en_US
dc.subject High-Performance en_US
dc.subject Electrochemical Capacitors en_US
dc.subject High-Power en_US
dc.subject Nanostructured Carbon en_US
dc.subject Aqueous-Electrolyte en_US
dc.subject Pd Nanowires en_US
dc.subject Graphene en_US
dc.subject Films en_US
dc.subject Density en_US
dc.title Solution processed sun baked electrode material for flexible supercapacitors en_US
dc.type Article en_US


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