对不同合成方法制备的钴铁氧体纳米颗粒进行了表征，并与其他铁氧体和一些立方氧化尖晶石的拉曼光谱进行了比较

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos230322035l

Z. Lazarević, A. Milutinović, L. Andjelković, M. Petrović, B. Hadžić, M. Romčević, J. Trajic, N. Romčević

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引用次数: 0

摘要

采用共沉淀法、超声辅助共沉淀法、共沉淀法后机械化学法、微乳液法和微波辅助水热法等不同的合成方法，获得了粒径相近的纳米颗粒(15.7 ~ 19 nm)的单相铁酸钴(CoFe2O4)。利用x射线衍射(XRD)、拉曼光谱、远红外(FIR)反射率和衰减全反射(ATR)以及中红外光谱中的傅里叶变换红外(FTIR)光谱等多种表征技术对所得的CoFe2O4样品进行了研究。不同的合成方法制备的纳米颗粒具有不同的晶格常数、内应力和不同的阳离子反转值。不同CoFe2O4纳米粉体的拉曼光谱和红外光谱的细微变化证实了这一点。将CoFe2O4的拉曼光谱与其他铁氧体和一些立方氧化尖晶石的拉曼光谱进行了比较，试图评估四面体和八面体振荡在某些拉曼模式下的贡献。

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Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels

Single phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation, coprecipitation followed by mechanochemical treatment, microemulsion and microwave assisted hydrothermal synthesis. The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. Different methods of synthesis produced nanoparticles with different lattice constants, internal stresses and different cation inversion values. This is confirmed in the subtle changes in the Raman and IR spectra of different CoFe2O4 nano-powders. The Raman spectra of CoFe2O4 were compared with the spectra of other ferrites and some cubic oxide spinels in an attempt to evaluate the contribution of tetrahedral and octahedral oscillations in certain Raman modes.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.