LOW-TEMPERATURE SYNTHESIS OF SUPERPARAMAGNETIC Zn0.8Ni0.2Fe2O4 FERRITE NANOPARTICLES

1 Luong Thi Quynh Anh, 1Nguyen Van Dan and 2Do Minh Nghiep

1 Department of Metallic materials, Faculty of Materials technology, HCMUT-VNUHCM, Ho Chi Minh City, Vietnam
2 School of Materials science and engineering, Hanoi University of science and technology, Hanoi, Vietnam

The crystalline nanoparticles of Zn0.8Ni0.2Fe2O4 ferrite were synthesized by chemical co-precipitation with precursor concentration of 0.1M, then modified by 0.25M solution of oleic acid in pentanol and finally heated at temperatures 120, 140, 160 and 180 oC for 6 h in autoclave. The effect of heating temperature on crystallite size and magnetic properties of ferrite was studied. The analysis of XRD, EDS and TEM data of samples confirmed that all of samples heated at these temperatures are crystalline and their particle size is different with corresponding values 6, 6.5, 7 and 8 nm. The magnetic properties of Zn0,8Ni0,2Fe2O4 ferrite measured by vibrating sample magnetometer (VSM) showed that the coercive force Hc and the remanence Mr of samples are about zero while the saturation magnetization Ms has values of 14.20, 25.39, 26.81, and 27.12 emu / g consequently.
Ключевые слова:crystalline nanoparticles, Zn0.8Ni0.2Fe2O4 ferrite, magnetic properties, superparamagnetism (SPM)

E-mail: ltqanh@hcmut.edu.vn, nghiep.dominh@hust.edu.vn

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Образец цитирования для русскоязычных изданий:
Low-temperature synthesis of superparamagnetic Zn0.8Ni0.2Fe2O4 ferrite nanoparticles / Luong Thi Quynh Anh, Nguyen Van Dan, Do Minh Nghiep // Современные методы и технологии создания и обработки материалов : сб. научных трудов. В 3 кн. Кн. 1. Материаловедение / редкол.: А. В. Белый (гл. ред.) [и др.]. — Минск: ФТИ НАН Беларуси, 2017. — С. 281–288.

Образец цитирования для международных изданий:
Luong Thi Quynh Anh, Nguyen Van Dan and Do Minh Nghiep Low-temperature synthesis of superparamagnetic Zn0.8Ni0.2Fe2O4 ferrite nanoparticles / Sovremennye metody i tekhnologii sozdaniya i obrabotki materialov [Advanced Methods and Technologies of Materials Development and Processing]. Collection of scientific papers, Minsk, FTI NAN Belarusi [PTI NAS Belarus], A.V. Byeli (ed.), 2017, vol. 1, pp. 281–286.  

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