4.7 Article

Microstructural analysis, magnetic interactions, and electrical transport studies of Zn1 xCuxFe2O4 nanoparticles

期刊

JOURNAL OF ALLOYS AND COMPOUNDS
卷 954, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2023.170172

关键词

Copper doping; Electrical conductivity; Zinc ferrite nanoparticles; Activation energy

向作者/读者索取更多资源

This study investigates the synthesis, structure, magnetic interactions, and electrical transport properties of different copper-doped zinc ferrite nanoparticles. The synthesized nanoparticles exhibit a cubic spinel structure, and the lattice parameters decrease with increasing Cu content. The nanoparticles emit green light in the visible spectrum. Cu+2 doping results in the highest saturation magnetization, and the electrical conductivity increases with temperature and Cu content. These nanoparticles show potential for various applications including sensors, energy storage, and catalysis.
This study focuses on the synthesis, structural characterization, magnetic interactions, and electrical transport properties of copper-doped zinc ferrite (Zn1 XCuXFe2O4) nanoparticles with varying Cu con-centrations (x = 0.00, 0.03, 0.06, 0.10) using the co-precipitation method. The structural and morphological properties were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM), through TEM, while the BET technique was employed to determine the surface area, pore size, and specific surface area. The synthesized nanoparticles were found to exhibit a cubic spinel structure with lattice parameters decreasing as Cu content increased. The photoluminescence spectra indicated emission energies and wa-velengths in the green region of the visible spectrum. The magnetic properties were studied using a vi-brating sample magnetometer (VSM), revealing that Cu+2 doping resulted in the highest saturation magnetization (16.47 emu/g) by using an applied up to 50 kOe. The electrical properties were studied in the frequency range from 25 Hz to 2 MHz as a function of temperature ranging from 300 K to 480 K with an increment of 20 K. The electrical conductivity of the nanoparticles was found to increase with temperature and Cu content which is attributed to the thermally activated mechanism and predominantly dominated by overlapping large polaron tunneling (OLPT). The activation energy obtained from DC conductivities de-creased order 0.63-0.48 eV for the synthesized nanoparticles. The temperature-dependent drift mobility exhibited p-type semiconducting behavior. Overall, the results suggest that Zn1 XCuXFe2O4 NPs have the potential for use in various applications, including sensors, energy storage, and catalysis.(c) 2023 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据