<p>Nanoflakes growth of Bi<sub>2</sub>CdO<sub>4</sub> have been accomplished yielding tetragonal symmetric crystal structure through two-step chemical approach at room temperature as revealed by structural and morphological analysis. The liquid-configured electrochemical analysis of Bi<sub>2</sub>CdO<sub>4</sub> grown on conducting stainless steel substrate was used as current collector and yields specific capacitance of 158.30 F/g (areal ~ 134.55&#xa0;mF/cm<sup>2</sup>) at&#xa0;5 mV/s&#xa0;with cyclic capacitive retention of 68.15% over 3000 CV cycles. Solid-state device configured through two analogous electrodes witnessed 1.5&#xa0;V potential window with specific capacitance of 29.96&#xa0;F/g (areal ~ 25.47&#xa0;mF/&#xa0;cm<sup>2</sup>) at 5 mV/s&#xa0;along with stability retention over 68.92% for 5000 CV cycles. Ragone’s curve specified energy density of 3.61&#xa0;Wh/kg with 477.66&#xa0;W/kg of power density. Illuminating a red LED panel and running small dc fan demonstrated the real-life application of a designed&#xa0;device-grade symmetric solid-state supercapacitor.</p>

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Tetragonal-symmetric Bi2CdO4 nanoflakes: Symmetrically configured device-grade solid-state supercapacitor

  • Swapna Rout,
  • Vinay Soni,
  • Suraj R. Sankapal,
  • Babasaheb R. Sankapal

摘要

Nanoflakes growth of Bi2CdO4 have been accomplished yielding tetragonal symmetric crystal structure through two-step chemical approach at room temperature as revealed by structural and morphological analysis. The liquid-configured electrochemical analysis of Bi2CdO4 grown on conducting stainless steel substrate was used as current collector and yields specific capacitance of 158.30 F/g (areal ~ 134.55 mF/cm2) at 5 mV/s with cyclic capacitive retention of 68.15% over 3000 CV cycles. Solid-state device configured through two analogous electrodes witnessed 1.5 V potential window with specific capacitance of 29.96 F/g (areal ~ 25.47 mF/ cm2) at 5 mV/s along with stability retention over 68.92% for 5000 CV cycles. Ragone’s curve specified energy density of 3.61 Wh/kg with 477.66 W/kg of power density. Illuminating a red LED panel and running small dc fan demonstrated the real-life application of a designed device-grade symmetric solid-state supercapacitor.