Flexible and High Performance Supercapacitors Based on NiCo(2)O(4)for Wide Temperature Range Applications

dc.contributor.authorGupta, Ram K.
dc.contributor.authorCandler, John
dc.contributor.authorPalchoudhury, Soubantika
dc.contributor.authorRamasamy, Karthik
dc.contributor.authorGupta, Bipin Kumar
dc.contributor.otherPittsburg State University
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUnited States Department of Energy (DOE)
dc.contributor.otherLos Alamos National Laboratory
dc.contributor.otherCouncil of Scientific & Industrial Research (CSIR) - India
dc.contributor.otherCSIR - National Physical Laboratory (NPL)
dc.date.accessioned2023-09-28T19:39:23Z
dc.date.available2023-09-28T19:39:23Z
dc.date.issued2015
dc.description.abstractBinder free nanostructured NiCo2O4 were grown using a facile hydrothermal technique. X-ray diffraction patterns confirmed the phase purity of NiCo2O4. The surface morphology and microstructure of the NiCo2O4 analyzed by scanning electron microscopy (SEM) showed flower-like morphology composed of needle-like structures. The potential application of binder free NiCo2O4 as an electrode for supercapacitor devices was investigated using electrochemical methods. The cyclic voltammograms of NiCo2O4 electrode using alkaline aqueous electrolytes showed the presence of redox peaks suggesting pseudocapacitance behavior. Quasi-solid state supercapacitor device fabricated by sandwiching two NiCo2O4 electrodes and separating them by ion transporting layer. The performance of the device was tested using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. The device showed excellent flexibility and cyclic stability. The temperature dependent charge storage capacity was measured for their variable temperature applications. Specific capacitance of the device was enhanced by similar to 150% on raising the temperature from 20 to 60 degrees C. Hence, the results suggest that NiCo2O4 grown under these conditions could be a suitable material for high performance supercapacitor devices that can be operated at variable temperatures.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationGupta, R. K., Candler, J., Palchoudhury, S., Ramasamy, K., & Gupta, B. K. (2015). Flexible and High Performance Supercapacitors Based on NiCo2O4for Wide Temperature Range Applications. In Scientific Reports (Vol. 5, Issue 1). Springer Science and Business Media LLC. https://doi.org/10.1038/srep15265
dc.identifier.doi10.1038/srep15265
dc.identifier.orcidhttps://orcid.org/0000-0001-5355-3897
dc.identifier.orcidhttps://orcid.org/0000-0002-0696-0454
dc.identifier.urihttps://ir.ua.edu/handle/123456789/11681
dc.languageEnglish
dc.language.isoen_US
dc.publisherNature Portfolio
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHYDROTHERMAL SYNTHESIS
dc.subjectELECTRODE MATERIALS
dc.subjectNICO2O4 NANOSTRUCTURES
dc.subjectRUO2 NANOPARTICLES
dc.subjectGRAPHENE
dc.subjectARRAYS
dc.subjectCOMPOSITE
dc.subjectNANOWIRES
dc.subjectSHEETS
dc.subjectGROWTH
dc.subjectMultidisciplinary Sciences
dc.titleFlexible and High Performance Supercapacitors Based on NiCo(2)O(4)for Wide Temperature Range Applicationsen_US
dc.typeArticle
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