Soft magnetic composite materials (SMCs)

Cation distribution and particle size effect on Raman spectrum of CoFe2O4

Electrical and magnetic characterization of nanocrystalline Ni–Zn ferrite synthesis by co-precipitation route

Characterization and magnetic properties of nanocrystalline CuFe2O4, NiFe2O4, ZnFe2O4 powders prepared by the Aloe vera extract solution

An electrode with intimate and well-aligned ZnFe 2 O 4 /TiO 2 composite nanotube arrays is prepared via electrochemical anodization of pure titanium foil in fluorine-containing ethylene glycol, followed by a novel cathodic electrodeposition method. The deposition of ZnFe 2 O 4 is promoted in the self-aligned, vertically oriented TiO 2 nanotube arrays but minimized at the tube entrances. Thus, pore clogging is prevented. Environmental scanning electron microscopy, energy-dispersive X-ray spectra, high-resolution transmission electron microscopy, X-ray diffraction patterns, and X-ray photoelectron spectroscopy indicate that the as-prepared samples are highly ordered and vertically aligned TiO 2 nanotube arrays with ZnFe 2 O 4 nanoparticles loading. The TiO 2 nanotubes are anatase with the preferential orientation of plane. Enhanced absorption in both UV and visible light regions is observed for the composite nanotube arrays. The current-voltage curve of ZnF e 2 0 4-loaded TiO 2 nanotube arrays reveals a rectifying behavior. The enhanced separation of photoinduced electrons and holes is demonstrated by surface photovoltage and photocurrent measurements. Meanwhile, the photoelectrochemical investigations verify that the ZnFe 2 O 4 / TiO 2 composite nanotube array modified electrode has a more effective photoconversion capability than the aligned TiO 2 nanotube arrays alone. In addition, the photoelectrocatalytic ability of the novel electrode is found enhanced in the degradation of 4-chlorophenol. .

Li Wang

Papers

Magnetic properties of ZnFe2O4 nanoparticles produced by a low-temperature solid-state reaction method

Site preference of Fe in nanoparticles of ZnFe2O4

Mössbauer study of nanocrystalline Ni–Zn ferrite

Structural, dynamic magnetic and dielectric properties of Ni0.15Cu0.2Zn0.65Fe2O4 ferrite produced by NaOH co-precipitation method