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<p>The semi-spherical Bismuth oxide-Bismuthyl chloride/poly(1H-pyrrole) (Bi<sub>2</sub>O<sub>3</sub>–B–OCl/P1HP) core–shell nanocomposite is synthesized via a single-step reaction involving the oxidation of 1H-pyrrole in the presence of Bi(NO<sub>3</sub>)<sub>3</sub>. This process causes the formation of promising semi-spherical particles with a size of ~ 97 nm and an estimated crystalline size of 13 nm. The prominent peaks observed confirm the successful formation of a high-quality nanocomposite. XPS reveals the presence of both Bi<sub>2</sub>O<sub>3</sub> and BiOCl within the polymer matrix, while FTIR analyzes the functional groups of the P1HP polymer before and after the incorporation of these materials.</p><p>The charge storage capability of this core–shell composite material is assessed using a three-electrode cell setup, where the Bi<sub>2</sub>O<sub>3</sub>–BiOCl/P1HP composite paste acts as the primary electrode. Electrochemical evaluation measures the charge storage through the produced power energy (P) and energy density (E), which are based on specific capacitance (Cs). The results show values of 5.4 Wh/kg for energy density, 405 mW/kg for power energy, and 68 F/g for specific capacitance. Additionally, the stability of the supercapacitor is found to be 98% after 1000 cycles. These parameters indicate that the Bi<sub>2</sub>O<sub>3</sub>–BiOCl/P1HP core–shell nanocomposite exhibits promising behavior for energy storage applications, making it a strong candidate for commercial use. The excellent stored energy density and stability highlight its potential for high-performance supercapacitors.</p>

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High energy density pseudo-supercapacitors enabled by semi-spherical bismuth polymer nanocomposites

  • 期刊论文

  • 发表日期：

    2025年6月7日

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  • Mohamed Rabia,
  • Eman Aldosari,
  • Yi Zhang

摘要

The semi-spherical Bismuth oxide-Bismuthyl chloride/poly(1H-pyrrole) (Bi2O3–B–OCl/P1HP) core–shell nanocomposite is synthesized via a single-step reaction involving the oxidation of 1H-pyrrole in the presence of Bi(NO3)3. This process causes the formation of promising semi-spherical particles with a size of ~ 97 nm and an estimated crystalline size of 13 nm. The prominent peaks observed confirm the successful formation of a high-quality nanocomposite. XPS reveals the presence of both Bi2O3 and BiOCl within the polymer matrix, while FTIR analyzes the functional groups of the P1HP polymer before and after the incorporation of these materials.

The charge storage capability of this core–shell composite material is assessed using a three-electrode cell setup, where the Bi2O3–BiOCl/P1HP composite paste acts as the primary electrode. Electrochemical evaluation measures the charge storage through the produced power energy (P) and energy density (E), which are based on specific capacitance (Cs). The results show values of 5.4 Wh/kg for energy density, 405 mW/kg for power energy, and 68 F/g for specific capacitance. Additionally, the stability of the supercapacitor is found to be 98% after 1000 cycles. These parameters indicate that the Bi2O3–BiOCl/P1HP core–shell nanocomposite exhibits promising behavior for energy storage applications, making it a strong candidate for commercial use. The excellent stored energy density and stability highlight its potential for high-performance supercapacitors.