Fern-like rGO/BiVO4 hybrid nanostructures for high-energy symmetric supercapacitor
Patil, Santosh S. (Shivaji University. Department of Chemistry)
Dubal, Deepak P. (Institut Català de Nanociència i Nanotecnologia)
Deonikar, Virendrakumar G. (Centre for Materials for Electronics Technology (Pune, Índia))
Tamboli, Mohaseen S. (Centre for Materials for Electronics Technology (Pune, Índia))
Ambekar, Jalindar D. (Centre for Materials for Electronics Technology (Pune, Índia))
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)
Kolekar, Sanjay S. (Shivaji University. Department of Chemistry)
Kale, Bharat B. (Centre for Materials for Electronics Technology (Pune, Índia))
Patil, Deepak R. (Centre for Materials for Electronics Technology (Pune, Índia))

Date:	2016
Abstract:	Herein, we demonstrate the synthesis of rGO/BiVO hybrid nanostructures by facile hydrothermal method. Morphological studies reveal that rGO sheets are embedded in the special dendritic fern-like structures of BiVO. The rGO/BiVO hybrid architecture shows the way to a rational design of supercapacitor, since these structures enable easy access of electrolyte ions by reducing internal resistance. Considering the unique morphological features of rGO/BiVO hybrid nanostructures, their supercapacitive properties were investigated. The rGO/BiVO electrode exhibits a specific capacitance of 151 F/g at the current density of 0. 15 mA/cm. Furthermore, we have constructed rGO/BiVO symmetric cell which exhibits outstanding volumetric energy density of 1. 6 mW h/cm (33. 7 W h/kg) and ensures rapid energy delivery with power density of 391 mW/cm (8. 0 kW/kg). The superior properties of symmetric supercapacitor can be attributed to the special dendritic fern-like BiVO morphology and intriguing physicochemical properties of rGO.
Grants:	Ministerio de Economía y Competitividad MAT2015-68394-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1505
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Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Published in:	ACS applied materials & interfaces, Vol. 8, Issue 46 (November 2016) , p. 31602-31610, ISSN 1944-8252

DOI: 10.1021/acsami.6b08165

Preprint 23 p, 2.2 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles