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|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|
|Citation:||ACS Applied Materials and Interfaces, 2016; 8(46):31602-31610|
|Publisher:||American Chemical Society|
|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|
|Appears in Collections:||Chemical Engineering publications|
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