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MoNiO4 flower-like electrode material for enhanced electrochemical properties by facile chemical bath deposition method for supercapacitor applications

Abstract

Abstract Recently, binary metal oxides with the multifunctional properties of nickel foam-based architectures have attracted considerable interest as desirable electrode materials for well capability supercapacitors (SCs) application. In this work, the MoNiO4 flower-like nanostructure with enhanced supercapacitance performance have been successfully synthesized via a chemical bath deposition (CBD) method and subsequent calcination in air. This approach was primarily due to the availability of more surface-active sites in the well-defined hierarchical architecture, which allow the rapid diffusion of electrolyte ions and minimize the electron transport limitation. The as-fabricated MoNiO4 electrode yielded a maximum specific capacitance of 1140 F g-1 at 2 A g-1, which are comparable to those of the state-of-the art MoNiO4 electrodes. Moreover, the MoNiO4 material exhibited an excellent energy density of 64.2 W h kg-1 at 2 A g-1, outstanding power density of 1750 W kg-1, and excellent electrochemical stability with 97.8% retention after 3000 continuous charge-discharge cycles, even at a high current density of 4 A g-1, which are comparable to those of the state-of-the art MoNiO4 flower-like structure. The outstanding performance of the MoNiO4-based flower-like electrode was successfully utilized to drive efficient for SCS applications. Moreover, the electrochemical performance of a unique hierarchically structured MoNiO4-based binder-free electrode with our facile approach paves a new pathway for the low-cost production of electrode with development of novel metal oxides for high-performance SCs applications.

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Publication details

The article was received on 05 Nov 2019, accepted on 28 Nov 2019 and first published on 29 Nov 2019


Article type: Paper
DOI: 10.1039/C9NJ05529K
New J. Chem., 2019, Accepted Manuscript

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    MoNiO4 flower-like electrode material for enhanced electrochemical properties by facile chemical bath deposition method for supercapacitor applications

    Y. Anil Kumar, D. K. Kulurumotlakatla, H. Kim and S. Singh, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ05529K

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