Investigation of electrochemical properties of Pt-WO3 nanocomposite thin films for supercapacitor applications

IF 4.3 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY Journal of Physics and Chemistry of Solids Pub Date : 2024-11-02 DOI:10.1016/j.jpcs.2024.112428

Reenu Rani , Ashwani Kumar , Meenakshi Sharma , Brij Mohan , Rinku Kumar , Ramesh Chandra , V.K. Malik

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Abstract

In this study, we investigated the impact of Platinum (Pt) nanocomposite incorporation on the electrochemical properties of Tungsten oxide (WO₃) thin films. The binder free sputtered grown thin film electrode of Pt-WO₃ nanocomposite shows modified structural and improved electrochemical characteristics. Pt incorporation improved electron transfer in WO₃ matrix, and morphology (Nano-porous like) consequently enhance specific capacitance value and stability of electrode. The specific capacitance (C_s) of the Pt-WO₃ nanocomposite electrode measured 559 Fg⁻¹ at 0.02 A g⁻¹, almost double the value obtained for the pure WO₃ electrode (225 Fg⁻¹), and demonstrate excellent cyclic stability over 5000 cycles. These findings suggest that Pt-WO₃ nanocomposites hold significant potential as electrode materials for advanced supercapacitor devices, offering both high energy storage capacity and excellent long-term stability.

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用于超级电容器的 Pt-WO3 纳米复合薄膜的电化学特性研究

在本研究中，我们研究了铂 (Pt) 纳米复合材料的加入对氧化钨 (WO3) 薄膜电化学特性的影响。无粘结剂溅射生长的 Pt-WO3 纳米复合薄膜电极显示出改良的结构和更好的电化学特性。铂的加入改善了 WO3 基体中的电子传递，其形态（纳米多孔状）也因此提高了比电容值和电极的稳定性。Pt-WO3 纳米复合电极在 0.02 A g-1 条件下的比电容（Cs）为 559 Fg-1，几乎是纯 WO3 电极比电容值（225 Fg-1）的两倍，并且在 5000 个循环周期中表现出优异的循环稳定性。这些发现表明，铂-WO₃纳米复合材料作为先进超级电容器设备的电极材料具有巨大的潜力，既能提供高能量存储能力，又具有出色的长期稳定性。

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来源期刊

Journal of Physics and Chemistry of Solids 工程技术-化学综合

CiteScore

7.80

自引率

2.50%

发文量

605

审稿时长

40 days

期刊介绍： The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.