Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors

Chernysheva, Daria; Pudova, Ludmila; Popov, Yuri; Smirnova, Nina; Maslova, Olga; Allix, Mathieu; Rakhmatullin, Aydar; Leontyev, Nikolay; Nikolaev, Andrey; Leontyev, Igor

doi:10.3390/nano11010187

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Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors

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Platov South-Russian State Polytechnic University (NPI), 346428 Novocherkassk, Russia

Physics Department, Southern Federal University, 344090 Rostov-on-Don, Russia

Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, 346428 Tomsk, Russia

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CNRS, CEMHTI UPR3079, Univ. Orléans, F-45071 Orléans, France

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Azov-Black Sea Engineering Institute, Don State Agrarian University, Rostov region, 347740 Zernograd, Russia

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Research and Education Center “Materials”, Don State Technical University, 344000 Rostov-on-Don, Russia

Author to whom correspondence should be addressed.

Nanomaterials 2021, 11(1), 187; https://doi.org/10.3390/nano11010187

Received: 20 November 2020 / Revised: 24 December 2020 / Accepted: 27 December 2020 / Published: 13 January 2021

(This article belongs to the Special Issue Advances in Micro- and Nanomechanics)

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Abstract

A series of NiO/C nanocomposites with NiO concentrations ranging from 10 to 90 wt% was synthesized using a simple and efficient two-step method based on non-isothermal decomposition of Nickel(II) bis(acetylacetonate). X-ray diffraction (XRD) measurements of these NiO/C nanocomposites demonstrate the presence of β-NiO. NiO/C nanocomposites are composed of spherical particles distributed over the carbon support surface. The average diameter of nickel oxide spheres increases with the NiO content and are estimated as 36, 50 and 205 nm for nanocomposites with 10, 50 and 80 wt% NiO concentrations, respectively. In turn, each NiO sphere contains several nickel oxide nanoparticles, whose average sizes are 7–8 nm. According to the tests performed using a three-electrode cell, specific capacitance (SC) of NiO/C nanocomposites increases from 200 to 400 F/g as the NiO content achieves a maximum of 60 wt% concentration, after which the SC decreases. The study of the NiO/C composite showing the highest SC in three- and two-electrode cells reveals that its SC remains almost unchanged while increasing the current density, and the sample demonstrates excellent cycling stability properties. Finally, NiO/C (60% NiO) composites are shown to be promising materials for charging quartz clocks with a power rating of 1.5 V (30 min). View Full-Text

Keywords: supercapacitor; nickel oxide; NiO/C nanocomposite; non-isothermal decomposition

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Chernysheva, D.; Pudova, L.; Popov, Y.; Smirnova, N.; Maslova, O.; Allix, M.; Rakhmatullin, A.; Leontyev, N.; Nikolaev, A.; Leontyev, I. Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors. Nanomaterials 2021, 11, 187. https://doi.org/10.3390/nano11010187

AMA Style

Chernysheva D, Pudova L, Popov Y, Smirnova N, Maslova O, Allix M, Rakhmatullin A, Leontyev N, Nikolaev A, Leontyev I. Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors. Nanomaterials. 2021; 11(1):187. https://doi.org/10.3390/nano11010187

Chicago/Turabian Style

Chernysheva, Daria, Ludmila Pudova, Yuri Popov, Nina Smirnova, Olga Maslova, Mathieu Allix, Aydar Rakhmatullin, Nikolay Leontyev, Andrey Nikolaev, and Igor Leontyev. 2021. "Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors" Nanomaterials 11, no. 1: 187. https://doi.org/10.3390/nano11010187

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Non-Isothermal Decomposition as Efficient and Simple Synthesis Method of NiO/C Nanoparticles for Asymmetric Supercapacitors

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