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Type: Journal article
Title: Fern-like rGO/BiVO₄ hybrid nanostructures for high-energy symmetric supercapacitor
Other Titles: Fern-like rGO/BiVO(4) hybrid nanostructures for high-energy symmetric supercapacitor
Author: Patil, S.
Dubal, D.
Deonikar, V.
Tamboli, M.
Ambekar, J.
Gomez-Romero, P.
Kolekar, S.
Kale, B.
Patil, D.
Citation: ACS Applied Materials and Interfaces, 2016; 8(46):31602-31610
Publisher: American Chemical Society
Issue Date: 2016
ISSN: 1944-8244
Statement of
Santosh S. Patil, Deepak P. Dubal, Virendrakumar G. Deonikar, Mohaseen S. Tamboli, Jalindar D. Ambekar, Pedro Gomez-Romero, Sanjay S. Kolekar, Bharat B. Kale, and Deepak R. Patil
Abstract: Herein, we demonstrate the synthesis of rGO/BiVO₄ hybrid nanostructures by facile hydrothermal method. Morphological studies reveal that rGO sheets are embedded in the special dendritic fern-like structures of BiVO₄. The rGO/BiVO₄ 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/BiVO₄ hybrid nanostructures, their supercapacitive properties were investigated. The rGO/BiVO₄ electrode exhibits a specific capacitance of 151 F/g at the current density of 0.15 mA/cm². Furthermore, we have constructed rGO/BiVO₄ symmetric cell which exhibits outstanding volumetric energy density of 1.6 mW h/cm³ (33.7 W h/kg) and ensures rapid energy delivery with power density of 391 mW/cm³ (8.0 kW/kg). The superior properties of symmetric supercapacitor can be attributed to the special dendritic fern-like BiVO₄ morphology and intriguing physicochemical properties of rGO.
Keywords: rGO/BiVO₄; fern/dendritic structures; hydrothermal method; high energy density; symmetric supercapacitor, Ragone plot
Rights: © 2016 American Chemical Society
DOI: 10.1021/acsami.6b08165
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Chemical Engineering publications

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