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Issue 13, 2017
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Unique nanopetals of nickel vanadate: crystal structure elucidation and supercapacitive performance

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Abstract

Development of oxides and hydroxides based on d-block transition elements has been a successful strategy in enhancing supercapacitive performance with stability. Porous 3D nanoarchitectures of the above materials have further amplified the properties. Herein, we report the fabrication of a novel unique array of nickel vanadate nanopetals by a facile, sequential hydrothermal method. Its crystallographic parameters, such as phase and bond distances/angles, have been explored. XPS study confirms the exchange of electrolytic ions in charge–discharge. Morphology studies show the petal thickness to be about 100 nm with a channel width of 200 nm. It shows remarkable specific capacitance (1252 F g−1), specific power (8.11 kW kg−1), specific energy (43.47 W h kg−1) and retention of specific capacitance (∼97%) after one day of voltage floating. These enhanced values make it a promising electrode material for next generation energy storage application.

Graphical abstract: Unique nanopetals of nickel vanadate: crystal structure elucidation and supercapacitive performance

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Publication details

The article was received on 04 Nov 2016, accepted on 16 May 2017 and first published on 17 May 2017


Article type: Paper
DOI: 10.1039/C6NJ03427F
Citation: New J. Chem., 2017,41, 5620-5627
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    Unique nanopetals of nickel vanadate: crystal structure elucidation and supercapacitive performance

    D. Nandi, M. Gnanaseelan, F. Simon and J. Pionteck, New J. Chem., 2017, 41, 5620
    DOI: 10.1039/C6NJ03427F

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