The nanosized structure and relative paramagnetic properties of ZnFe2O4 by the polyol processes and the heat treatment processes
Year: 2025
Type: article
Abstract: The controlled synthesis and paramagnetic properties of nanosized Zn–Fe–O oxides have been researched by the polyol and the heat treatment processes designed according to drying, annealing, and sintering from low to high temperatures. The structural changes have led to change weak superparamagnetism of nanosized Zn–Fe–O oxides in the forms of hybrid nanosized ZnO/ZnFe 2 O 4 oxides into paramagnetism of nanosized ZnFe 2 O 4 when the as-prepared samples of both ZnO and ZnFe 2 O 4 oxides were isothermally annealed and sintered from low temperature at about 60 °C to high temperature at 950 °C for 2 h during their structural phase transitions in all the measurements of x-ray diffraction (XRD), vibrating sample magnetometer (VSM), scanning electron microscopy (SEM) and SEM/energy dispersive X-ray spectroscopy (EDX) combined methods. Interestingly, it is experimentally confirmed that one original paramagnetic hysteresis consists of paramagnetic segments and closed curves. Both normal and abnormal paramagnetic properties of ZnFe 2 O 4 were carefully investigated.
Source: Scientific Reports
Authors: Le Hong Phuc, Yong Yang, Nguyen Thi Nhat Hang, Nguyen Quan Hien, Ho Van Cuu, Nguyen Huu Tri, Nguyen Xuan Hoang, Masayuki Nogami, Nguyen Viet Long
Institutions: Institute of Advanced Technology, Vietnam Academy of Science and Technology, Chinese Academy of Sciences, Shanghai Institute of Ceramics, State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Thu Dau Mot University, Saigon University, HUTECH University, Nagoya Institute of Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W4415129581