Effect of fuel type and synthesis temperature on magnetic properties of ZnFe2O4 nanomaterials synthesized by sol-gel method

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Sol-Gel Science and Technology Pub Date : 2024-07-18 DOI:10.1007/s10971-024-06489-4

Ekaterina Bayan, Maria Mokliak, Yury Rusalev, Mikhail Tolstunov

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Abstract

ZnFe₂O₄ nanomaterials were synthesized using the sol-gel method with different fuels: citric acid, tartaric acid, ascorbic acid and glucose monohydrate. The effects of organic fuel type and calcination temperature on the magnetic properties of zinc ferrite were studied. X-ray diffraction analysis, thermogravimetric analysis, differential scanning calorimetry, and transmission electron microscopy were used to investigate the process of zinc ferrite formation during the calcination of intermediate gel products, as well as to analyze the crystal structure and samples morphology. The formation of hematite and wurtzite secondary phases was confirmed for some materials, and the influence of heat treatment conditions on impurity formation was discussed. The particle size of zinc ferrite was 11–39 nm depending on the calcination temperature and selected fuel. According to data obtained using a vibrating sample magnetometer, the ZnFe₂O₄ nanoparticles exhibited ferrimagnetic behavior with saturation magnetization values of 1.92–15.61 emu/g. Changing the fuel type and the calcination temperature makes it possible to obtain ZnFe₂O₄ nanomaterials with specific magnetic properties.

Graphical Abstract

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燃料类型和合成温度对溶胶-凝胶法合成的 ZnFe2O4 纳米材料磁性能的影响

采用溶胶-凝胶法与不同的燃料（柠檬酸、酒石酸、抗坏血酸和一水葡萄糖）合成了 ZnFe2O4 纳米材料。研究了有机燃料类型和煅烧温度对锌铁氧体磁性能的影响。利用 X 射线衍射分析、热重分析、差示扫描量热法和透射电子显微镜研究了中间凝胶产物煅烧过程中锌铁氧体的形成过程，并分析了晶体结构和样品形态。证实了一些材料中赤铁矿和乌兹石次生相的形成，并讨论了热处理条件对杂质形成的影响。根据煅烧温度和所选燃料的不同，锌铁氧体的粒度为 11-39 nm。根据振动样品磁力计获得的数据，ZnFe2O4 纳米颗粒表现出铁磁性，饱和磁化值为 1.92-15.61 emu/g。通过改变燃料类型和煅烧温度，可以获得具有特定磁性的 ZnFe2O4 纳米材料。

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.