Few layered vanadyl phosphate nano sheets-MWCNT hybrid as an electrode material for supercapacitor application

Journal Article · Fri May 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946530· OSTI ID:22606539

Dutta, Shibsankar; De, Sukanta ^[1]

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1. Department of physics, Presidency University, Kolkata-700073 (India)

It have been already seen that 2-dimensional nano materials are the suitable choice for the supercapacitor application due to their large specific surface area, electrochemical active sites, micromechanical flexibility, expedite ion migration channel properties. Free standing hybrid films of functionalized MWCNT (– COOH group) and α-Vanadyl phosphates (VOPO{sub 4}2H{sub 2}O) are prepared by vacuum filtering. The surface morphology and microstructure of the samples are studied by transmission electron microscope, field emission scanning electron microscope, XRD, Electrochemical properties of hybrid films have been investigated systematically in 1M Na{sub 2}SO{sub 4} aqueous electrolyte. The hybrid material exhibits a high specific capacitance 236 F/g with high energy density of 65.6 Wh/Kg and a power density of 1476 W/Kg.

• OSTI ID: 22606539
• Journal Information: AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CAPACITANCE
CAPACITIVE ENERGY STORAGE EQUIPMENT
ELECTROCHEMISTRY
ELECTRODES
ENERGY DENSITY
FIELD EMISSION
FILMS
FLEXIBILITY
MICROSTRUCTURE
PHOSPHATES
POWER DENSITY
SCANNING ELECTRON MICROSCOPY
SODIUM SULFATES
SPECIFIC SURFACE AREA
SURFACES
TRANSMISSION
TRANSMISSION ELECTRON MICROSCOPY
TWO-DIMENSIONAL SYSTEMS
X-RAY DIFFRACTION