title: Fern-like rGO/BiVO4Hybrid Nanostructures for High-Energy Symmetric Supercapacitor.
abstract: Herein, we demonstrate the synthesis of rGO/BiVO4hybrid nanostructures by facile hydrothermal method. Morphological studies reveal that rGO sheets are embedded in the special dendritic fern-like structures of BiVO4. The rGO/BiVO4hybrid 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/BiVO4hybrid nanostructures, their supercapacitive properties were investigated. The rGO/BiVO4electrode exhibits a specific capacitance of 151 F/g at the current density of 0.15 mA/cm2. Furthermore, we have constructed rGO/BiVO4symmetric 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 BiVO4morphology and intriguing physicochemical properties of rGO.
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.|Analytical Chemistry and Material Science Laboratory, Department of Chemistry, Shivaji University , Kolhapur 416004, India.
authors: Santosh S
authors: SS
authors: Patil
authors: Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC-BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain.
authors: Deepak P
authors: DP
authors: Dubal
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.
authors: Virendrakumar G
authors: VG
authors: Deonikar
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.
authors: Mohaseen S
authors: MS
authors: Tamboli
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.
authors: Jalindar D
authors: JD
authors: Ambekar
authors: Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC-BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain.
authors: Pedro
authors: P
authors: Gomez-Romero
authors: Analytical Chemistry and Material Science Laboratory, Department of Chemistry, Shivaji University , Kolhapur 416004, India.
authors: Sanjay S
authors: SS
authors: Kolekar
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.
authors: Bharat B
authors: BB
authors: Kale
authors: Centre for Materials for Electronics Technology, Ministry of Electronics and Information Technology (MeitY), Government of India , Pune 411008, India.
authors: Deepak R
authors: DR
authors: Patil
keywords: Ragone plot; fern/dendritic structures; high energy density; hydrothermal method; rGO/BiVO4; symmetric supercapacitor