Facile microwave synthesis of cerium molybdate as an electrode material for high-performance supercapacitor application in redox-additive electrolyte

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-10-28 DOI:10.1016/j.matlet.2024.137622

Aiswarya Johnson , A. Shameem , S. Sanjana , A. Murugan , V. Siva , Mohamed Hussien

引用次数: 0

Abstract

Developing cost-effective and eco-friendly supercapacitors has attracted increasing attention in high-energy supercapacitors constrained by the limited candidates. In this work, cerium molybdate is prepared by facile microwave combustion method. Powder XRD and FTIR analyses confirm the formation of Ce(MoO₄)₂. The nanostructure morphology and elemental ratio have been studied by FE-SEM equipped with EDS. The electrochemical behavior is assessed in three and two-electrode systems exhibiting a high specific capacitance (C_sp) of 582.34 F/g at 6 A/g (3-electrode system). Asymmetric device displays maximum C_sp of 242.64 F/g and energy density of 75.83 Wh/kg at 1 A/g. The results suggest that the prepared Ce(MoO₄)₂ nanoparticles can be used as a potential candidate for high-performance energy storage applications.

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微波简便合成钼酸铈电极材料，用于氧化还原电解质中的高性能超级电容器应用

受限于有限的候选材料，开发具有成本效益且环保的超级电容器越来越受到高能量超级电容器领域的关注。本研究采用简便的微波燃烧法制备了钼酸铈。粉末 XRD 和 FTIR 分析证实了 Ce(MoO4)2 的形成。配备 EDS 的 FE-SEM 对纳米结构的形态和元素比例进行了研究。在三电极和双电极系统中对电化学行为进行了评估，结果表明，在 6 A/g 时，比电容 (Csp) 高达 582.34 F/g（三电极系统）。不对称器件在 1 A/g 时的最大比电容为 242.64 F/g，能量密度为 75.83 Wh/kg。结果表明，制备的 Ce(MoO4)2 纳米粒子可作为高性能储能应用的潜在候选材料。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive