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Mesoporous spheres of Dy2NiMnO6 synthesized via hydrothermal route for structural, morphological, and electrochemical investigation

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Abstract

Here, we report the synthesis of the double perovskite-mesoporous spheres of Dy2NiMnO6 via hydrothermal process exhibiting P21/n monoclinic symmetry. Field emission electron micrographs confirmed the formation of porous spheres. The elemental mapping exhibited the homogenous distribution of metal ions, i.e., Dy3+, Ni2+, and Mn3+/Mn4+ as observed via X-ray photoelectron spectroscopy. The Dy2NiMnO6 spheres exhibited a specific surface area of ~ 38 m2/g, with an average pore diameter of ~ 10 nm. The specific capacitance for mesoporous spheres of Dy2NiMnO6 has been found to be ~ 395.2 F/g at the scan rate of 0.5 A/g. Furthermore, mesoporous spheres of Dy2NiMnO6 displayed stability over 2500 cycles with 71% specific capacitance retention at constant current destiny of 3 A/g.

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Funding

Authors (JS/IR) thank NIT Kurukshetra/DAAD, for providing him/her research/project fellowship. Author (AK) is thankful to Council of Scientific and Industrial Research (CSIR), New Delhi (India), for financial support (F. No. 22(0778)/18/EMR-II).

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  1. Department of Physics, National Institute of Technology Kurukshetra, Kurukshetra, Haryana, 136119, India

    Jashandeep Singh, Irina Rogge & Ashok Kumar

  2. Department of Physics, Free University of Berlin, 14195, Berlin, Germany

    Irina Rogge

  3. Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

    Uttam Kumar Goutam

  4. Department of Applied Sciences, National Institute of Technical Teachers Training and Research, Chandigarh, 160019, India

    Ashok Kumar

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  1. Jashandeep Singh
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Singh, J., Rogge, I., Goutam, U.K. et al. Mesoporous spheres of Dy2NiMnO6 synthesized via hydrothermal route for structural, morphological, and electrochemical investigation. Ionics 26, 5143–5153 (2020). https://doi.org/10.1007/s11581-020-03644-z

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