二维氧化镍纳米片薄膜电极在储能设备中的设计与性能评估

IF 1.6 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Peeyush Phogat, Shreya, Ranjana Jha, Sukhvir Singh
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引用次数: 0

摘要

这项研究全面探讨了氧化镍(NiO)纳米粒子的结构、光学和电化学特性,重点关注其在储能系统,尤其是电化学双层电容器(EDLC)中的潜在应用。通过一步水热法,利用碳模板合成了二维(2D)氧化镍纳米粒子。X 射线衍射分析证实了氧化镍纳米粒子的晶体性质,显示其晶体尺寸约为 35 纳米。光学表征揭示了氧化镍纳米粒子在紫外区的独特吸收模式,在可见光区还观察到额外的吸收,计算得出的带隙为 2.6 eV。形态学研究显示,NiO 纳米粒子具有独特的二维纳米片结构,微观结构图像显示的边缘图案和选区电子衍射图案表明了其多晶性质。氧化镍纳米粒子具有优异的电化学性能,包括高比电容,这对高效储能至关重要。其独特的二维纳米片结构增大了表面积,促进了电荷传输,使其成为 EDLC 的理想材料。此外,本研究确定的氧化镍纳米粒子带隙减小,提高了它们的导电性和整体电化学行为。这些新特性使氧化镍纳米粒子成为提高储能设备性能和效率的卓越材料。最重要的是,NiO 纳米粒子表现出 13 F/g 的高比电容,这突出表明了它对 EDLC 的适用性。这一发现将氧化镍纳米粒子定位为储能应用的理想候选材料,推动了超级电容器领域的发展。通过循环伏安法和奈奎斯特图进行的电化学分析进一步阐明了这种材料在储能应用方面的潜力。这一跨学科的探索丰富了我们对氧化镍纳米粒子的认识,并强调了其在新兴储能技术中的用途,为进一步推进超级电容器系统的可持续能源解决方案提供了指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Design and performance evaluation of 2D nickel oxide nanosheet thin film electrodes in energy storage devices

Design and performance evaluation of 2D nickel oxide nanosheet thin film electrodes in energy storage devices

This research comprehensively investigates the structural, optical, and electrochemical properties of nickel oxide (NiO) nanoparticles, focusing on its potential applications in energy storage systems, particularly electrochemical double-layer capacitors (EDLCs). In a single-step hydrothermal process, two-dimensional (2D) NiO nanoparticles was synthesized using carbon templates. X-ray diffraction analysis confirmed NiO nanoparticle’s crystalline nature, revealing a crystallite size of approximately 35 nm. Optical characterization unveiled NiO nanoparticle’s distinctive absorption pattern in the UV region, with additional absorbance observed in the visible region, and a calculated band gap of 2.6 eV. Morphological studies depicted a unique 2D nanosheets structure for NiO nanoparticles, with microstructural images showing fringe patterns and selected area electron diffraction patterns indicating its polycrystalline nature. NiO nanoparticles exhibit excellent electrochemical performance, including high specific capacitance, which is crucial for efficient energy storage. Their unique 2D nanosheet structure enhances surface area and facilitates better charge transport, making them ideal for EDLCs. Additionally, the reduced band gap of NiO nanoparticles, as determined in this study, improves their conductivity and overall electrochemical behavior. These novel attributes position NiO nanoparticles as superior materials for advancing the performance and efficiency of energy storage devices. Crucially, NiO nanoparticles exhibited a high specific capacitance of 13 F/g, highlighting its suitability for EDLCs. This finding positions NiO nanoparticles as a promising candidate for energy storage applications, advancing the field of supercapacitors. Electrochemical analysis through cyclic voltammetry and Nyquist plots further elucidated the material's potential in energy storage applications. This interdisciplinary exploration enriches our understanding of NiO nanoparticles and underscores its utility in emerging energy storage technologies, guiding further advancements in supercapacitor systems for sustainable energy solutions.

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来源期刊
Indian Journal of Physics
Indian Journal of Physics 物理-物理:综合
CiteScore
3.40
自引率
10.00%
发文量
275
审稿时长
3-8 weeks
期刊介绍: Indian Journal of Physics is a monthly research journal in English published by the Indian Association for the Cultivation of Sciences in collaboration with the Indian Physical Society. The journal publishes refereed papers covering current research in Physics in the following category: Astrophysics, Atmospheric and Space physics; Atomic & Molecular Physics; Biophysics; Condensed Matter & Materials Physics; General & Interdisciplinary Physics; Nonlinear dynamics & Complex Systems; Nuclear Physics; Optics and Spectroscopy; Particle Physics; Plasma Physics; Relativity & Cosmology; Statistical Physics.
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