Preparation, Structural and Dielectric Behaviors of CoxMn1-xMn2O4 (0 ≤ x ≤ 1) Nanoparticles

5th International Conference on Advanced Materials Sciences and Technology

Taufiq, A.^1 ; Muzammil, M.^1 ; Fuad, A.^1 ; Hidayat, N.^1 ; Sunaryono, S.^1 ; Mufti, N.^1 ; Hidayat, A.^1 ; Diantoro, M.^1 ; Munasir, M.^2

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang

65145, Indonesia^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Jl. Ketintang Surabaya, 60231, Indonesia^2

关键词: CoxMn1-xMn2O4;    Dielectric behavior;    Dielectricity;    Ion substitution;    Oxide nanoparticles;    Precipitation methods;    Tetrahedral sites;    X ray diffractometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/367/1/012050/pdf
DOI  :  10.1088/1757-899X/367/1/012050

来源: IOP

【 摘 要 】

Cobalt-manganese oxide nanoparticles become remarkable metal oxides due to their physical characters, for example, their electrical properties. In this paper, we report the synthesis of CoxMn1-xMn2O4(0 ≤ x ≤ 1) nanoparticles via a precipitation method. The structural and dielectric properties were investigated by means of X-ray diffractometer (XRD) and LCR-meter. From the data analysis, it was found that the CoxMn1-xMn2O4particles structured spinel cubic with the particle size ranging from 22.7 to 28.6 nm. Increasing Co2+ions led to declining lattice and crystal volume of the CoxMn1-xMn2O4nanoparticles. Such phenomenon was originated from the substitution process of Co2+ions that change the metal construction both at the octahedral and tetrahedral sites. Furthermore, the Co2+ion substitution resulted in an increase in the dielectric properties of the CoxMn1-xMn2O4nanoparticles regarding with dipole moment. Interestingly, the increase was also influenced by reducing the particle size and crystal volume of the CoxMn1-xMn2O4nanoparticles.