Exploring the potential of bismuth vanadate nanoparticles in supercapacitor technology

IF 4.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

Frontiers of Chemical Science and Engineering Pub Date : 2025-03-25 DOI:10.1007/s11705-025-2542-5

Ritika Soni, P. E. Lokhande, Deepak Kumar, Vishal Kadam, Chaitali Jagtap, Udayabhaskar Rednam, Ritika Singh, Kulwinder Singh, Shailesh Padalkar, Bandar Ali Al-Asbahi

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Abstract

Supercapacitors have attracted significant attention as a promising energy storage technology due to their high power density and rapid charge-discharge capabilities. In this study, we synthesized bismuth vanadate (BiVO₄) with varying molar ratios using the sol-gel combustion method and evaluated their effectiveness as supercapacitor electrodes. Crystallographic and morphological analyses confirmed the formation of nanoparticles with different phases. The vanadium-rich BiVO₄ compound electrode exhibited a maximum specific capacitance of 893 F·g⁻¹ at a current density of 0.5 A·g⁻¹ and demonstrated superior rate capability. Additionally, an all-solid-state asymmetric supercapacitor, fabricated using vanadium-rich BiVO₄ and activated carbon along with a gel electrolyte, achieved an energy density of 6.66 Wh·kg⁻¹ at a power density of 600 W·kg⁻¹ and sustained 86% capacitance retention after 10000 cycles. These results highlight the potential of Bi-V compounds in energy storage applications.

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探索钒酸铋纳米颗粒在超级电容器技术中的潜力

超级电容器因其高功率密度和快速充放电能力而成为一种很有前途的储能技术。在这项研究中，我们采用溶胶-凝胶燃烧法合成了不同摩尔比的钒酸铋（BiVO4），并评估了它们作为超级电容器电极的有效性。晶体学和形态学分析证实了不同相的纳米颗粒的形成。富钒BiVO4复合电极在电流密度为0.5 a·g−1时的最大比电容为893 F·g−1，具有优越的倍率性能。此外，使用富钒BiVO4和活性炭以及凝胶电解质制备的全固态非对称超级电容器在600 W·kg - 1的功率密度下实现了6.66 Wh·kg - 1的能量密度，并且在10000次循环后保持86%的电容保持率。这些结果突出了Bi-V化合物在储能应用中的潜力。

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来源期刊

Frontiers of Chemical Science and Engineering ENGINEERING, CHEMICAL-

CiteScore

7.60

自引率

6.70%

发文量

868

审稿时长

1 months

期刊介绍： Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.