Please use this identifier to cite or link to this item: https://idr.l2.nitk.ac.in/jspui/handle/123456789/12173
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dc.contributor.authorSelvakumar, M.-
dc.contributor.authorKrishna, Bhat, D.-
dc.contributor.authorManish, Aggarwal, A.-
dc.contributor.authorPrahladh, Iyer, S.-
dc.contributor.authorSravani, G.-
dc.date.accessioned2020-03-31T08:38:45Z-
dc.date.available2020-03-31T08:38:45Z-
dc.date.issued2010-
dc.identifier.citationPhysica B: Condensed Matter, 2010, Vol.405, 9, pp.2286-2289en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/12173-
dc.description.abstractA symmetrical (p/p) supercapacitor has been fabricated by making use of nanostructured zinc oxide (ZnO)-activated carbon (AC) composite electrodes for the first time. The composites have been characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction analysis (XRD). Electrochemical properties of the prepared nanocomposite electrodes and the supercapacitor have been studied using cyclic voltammetry (CV) and AC impedance spectroscopy in 0.1 M Na2SO4 as electrolyte. The ZnO-AC nanocomposite electrode showed a specific capacitance of 160 F/g for 1:1 composition. The specific capacitance of the electrodes decreased with increase in zinc oxide content. Galvanostatic charge-discharge measurements have been done at various current densities, namely 2, 4, 6 and 7 mA/cm2. It has been found that the cells have excellent electrochemical reversibility and capacitive characteristics in 0.1 M Na2SO4 electrolyte. It has also been observed that the specific capacitance is constant up to 500 cycles at all current densities. 2010 Elsevier B.V. All rights reserved.en_US
dc.titleNano ZnO-activated carbon composite electrodes for supercapacitorsen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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