Cation distribution of cobalt ferrite electrosynthesized nanoparticles. A methodological comparison

被引：32
作者：
Sanchez-Marcos, J. [1 ]
Mazario, E. [1 ]
Rodriguez-Velamazan, J. A. [2 ]
Salas, E. [3 ]
Herrasti, P. [1 ]
Menendez, N. [1 ]
机构：
[1] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Fis Aplicada, E-28049 Madrid, Spain
[2] Inst Laue Langevin, 6 Rue Jules Horowitz,BP 156, F-38042 Grenoble, France
[3] ESRF, Spline Spanish CRG Beanline, BP 220, F-38043 Grenoble, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 739卷
关键词：
Electrosynthesis; Inversion degree; Mossbauer spectroscopy; Nanoferrites; Neutron diffraction; IRON-OXIDE NANOPARTICLES; MAGNETIC-PROPERTIES; BIOMEDICAL APPLICATIONS; COFE2O4; NANOPARTICLES; MFE2O4; M; MOSSBAUER; NANOCRYSTALS; SUBSTITUTION; TEMPERATURE; BEHAVIOR;
D O I：
10.1016/j.jallcom.2017.12.342
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The present work seeks to analyse the structural and magnetic properties of cobalt ferrite nanoparticles obtained by electrochemical synthesis by high-resolution transmission electronic microscopy (HRTEM), X-ray absorption spectroscopy (XAS), Mossbauer spectroscopy (MS), neutron diffraction (ND) and SQUID magnetometer. The cationic distribution is analyzed by different techniques. The inversion degree determined by the most accurate measurements was 0.73(1), and the formula for the nanoparticles therefore was (up arrow Co0.27Fe0.73)[down arrow Co0.73Fe1.27]O-4. The magnetic moment found from DC and Mossbauer spectroscopy measurements was 3.8(3) mu B, and the coercivity was 7870 Oe at 100 K. (c) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：909 / 917
页数：9
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