Development of Pr-bi-Ph@FCNTs: A novel composite for economical and renewable supercapacitor application

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-06-30 DOI:10.1016/j.jallcom.2025.181951

M.A. Deyab, Q. Mohsen

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引用次数: 0

Abstract

This study presents the development of a high-performance supercapacitor, Praseodymium bis-phthalocyanine (Pr-bi-Ph) integrated with functionalized carbon nanotubes (FCNTs), referred to as Pr-bi-Ph@FCNTs. Comprehensive characterization techniques, including cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), galvanostatic charge/discharge (GSCD), as well as Brunauer-Emmett-Teller (BET), FT-IR, and EDS analyses, were employed to evaluate the electrochemical properties of the composite. At a current density of 1.0 A g⁻¹, Pr-bi-Ph@FCNTs exhibited a remarkable specific capacitance of 351 F g⁻¹, significantly surpassing that of Pr-bi-Ph alone, which registered 136 F g⁻¹. Notably, Pr-bi-Ph@FCNTs demonstrated exceptional cycling stability, maintaining 93% capacitance retention after 5000 cycles, even at a high current density of 10 A g⁻¹. The enhanced electrochemical performance is attributed to the synergistic effects of Pr-bi-Ph's high pseudocapacitance and conductivity, coupled with the capacitive contributions and excellent conductivity of FCNTs. This research highlights the potential of Pr-bi-Ph@FCNTs as an effective, economical, and renewable material for advanced supercapacitor applications.

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Pr-bi-Ph@FCNTs：一种经济、可再生的新型超级电容器复合材料的开发

本研究介绍了一种高性能超级电容器的开发，双酞菁镨（Pr-bi-Ph）与功能化碳纳米管（FCNTs）集成，称为Pr-bi-Ph@FCNTs。采用循环伏安法（CV）、电化学阻抗谱（EIS）、扫描电镜（SEM）、恒流充放电（GSCD）、BET、FT-IR和EDS等综合表征技术对复合材料的电化学性能进行了评价。当电流密度为1.0 a g⁻¹时，Pr-bi-Ph@FCNTs的比容为351 F g⁻¹，大大超过了单独的Pr-bi-Ph的比容为136 F g⁻¹。值得注意的是，Pr-bi-Ph@FCNTs表现出优异的循环稳定性，即使在10a g⁻¹的高电流密度下，5000次循环后仍保持93%的电容保持率。增强的电化学性能是由于Pr-bi-Ph的高赝电容和电导率的协同作用，再加上FCNTs的电容贡献和优异的电导率。这项研究突出了Pr-bi-Ph@FCNTs作为先进超级电容器应用的有效、经济和可再生材料的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.