Journal
IONICS
Volume 26, Issue 10, Pages 5143-5153Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-020-03644-z
Keywords
Inorganic oxide materials; Double perovskite; Rare earth; Hydrothermal; Electrochemical
Funding
- NIT Kurukshetra/DAAD
- Council of Scientific and Industrial Research (CSIR), New Delhi (India) [22(0778)/18/EMR-II]
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Here, we report the synthesis of the double perovskite-mesoporous spheres of Dy2NiMnO6 via hydrothermal process exhibiting P2(1)/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 similar to 38 m(2)/g, with an average pore diameter of similar to 10 nm. The specific capacitance for mesoporous spheres of Dy2NiMnO6 has been found to be similar to 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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