用于储能设备的硒镉共掺杂镍铁氧体的结构、形态和铁电特性

IF 2.6 4区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Magnetochemistry Pub Date : 2024-07-02 DOI:10.3390/magnetochemistry10070048
H. A. Alburaih, Muhammad Ahsan ul Haq, Abdul Jabbar, Atiq ur Rehman, A. Laref, Mohamed Musa Saad Hasb Elkhalig, N. A. Noor
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引用次数: 0

摘要

铁电材料因其在外部电场作用下可逆的自发电极化能力而闻名,因其独特的特性而在众多技术应用中发挥着重要作用。为此,我们采用标准的溶胶-凝胶自燃法制备了一系列尖晶石硒镉共掺杂镍铁氧体纳米材料 Cd0.5-xSrxNi0.5Fe2O4(x = 0.0、0.1、0.2 和 0.3)。样品的晶粒大小在 29 纳米到 40 纳米之间。制备样品的形态显示为均匀分布的球体。磁性能表明制备的铁氧体具有软磁性质。铁电研究表明,硒镉取代的铁氧体在常温下呈现出椭圆形的铁电回路。在 x = 0.3 时达到最大极化。对电流和电压(I-V)的分析表明,随着硒含量的增加,两侧漏电流呈对称缓慢下降趋势。制备的尖晶石的电导率随掺杂的硒量增加而增加。介电常数的实部随频率的增加而增加。材料显示出较大的椭圆环,表明其具有较高的非对称铁电储能能力。
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Structural, Morphological and Ferroelectric Properties of Sr-Cd Co-Doped Nickel Ferrite for Energy Storage Devices
Ferroelectric materials, renowned for their capacity to demonstrate spontaneous electric polarization reversible through an external electric field, are essential in numerous technological applications owing to their distinctive characteristics. For this, a series of spinel Sr-Cd co-doped nickel ferrite nanomaterials Cd0.5−xSrxNi0.5Fe2O4 (x = 0.0, 0.1, 0.2 and 0.3) were prepared through the standard sol-gel auto combustion method The XRD patterns showed that the prepared samples have a cubic spinel structure. The crystallite sizes of the samples vary from 29 to 40 nm. The morphology of prepared samples showed uniformly distributed spheres. Magnetic properties showed the soft magnetic nature of the prepared ferrites. The ferroelectric study revealed that Sr-Cd substituted ferrites exhibited the elliptical nature of ferroelectric loops at normal room temperature. The maximum polarization has been achieved at x = 0.3. The understanding of current and voltage (I–V) showed a slowly decreasing tendency of leakage current on both sides symmetrically against the increasing Sr content. The conductivity of the prepared spinel increases as a function of higher Sr doping. The real part of dielectric constant increases with increasing frequency. The materials show large elliptical loops indicating high asymmetric ferroelectric energy storage capability.
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来源期刊
Magnetochemistry
Magnetochemistry Chemistry-Chemistry (miscellaneous)
CiteScore
3.90
自引率
11.10%
发文量
145
审稿时长
11 weeks
期刊介绍: Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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