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https://hdl.handle.net/2440/113746
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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 1944-8252 |
Statement of Responsibility: | 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 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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