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Manganese (Mn)-doped titanium dioxide (TiO2) nanostructures were synthesised by hydrothermal reaction of TiO2 and Mn acetate with ethylenediamine and thiourea. The prepared samples were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. Characterisation...
Mn1Ce1 and Mn0.9Co0.1Ce1 complex oxides were prepared by co-precipitation in hydrothermal conditions and their physicochemical properties were characterized with N2 adsorption, XRD, Raman, and SEM. The complex oxides show enough stability and catalytic activity for oxidative degradation of 4,4'-Dibromobiphenyl in sub-critical water. Mn0.9Co0.1Ce1 has higher activity than Mn1Ce1, indicating doping...
We have investigated the properties of Mn-doped ZnO nanocrystalline films grown on zinc foil by hydrothermal method. The microstructure, optical and magnetic properties of these films have been characterized by SEM, XRD, XPS and UV-vis spectrum. The XPS spectra show the doping manganese exists as Mn2+. From UV-vis spectra, the shift in band gap and greater reflectivity can be observed due to Mn doping...
The Pb(Zn1/3Nb2/3)-PbTiO3 crystals are grown by the flux solution methods with 3 kinds of dopants, Fe, Mn, and Rh. Photorefractive properties are investigated. We also measure the extinction spectra including the scattering, electrooptic coefficients, photoconductivity, and photovoltaic effect. The two-wave-mixing gain of more than 20 cm-1 is obtained
Co-doped and Mn-doped beta-FeSi2 single crystals were grown by temperature gradient solution growth method using Ga as a solvent. Polyhedral shaped bulk crystals with well developed facets could be obtained. In particular, Co-doped single crystals which are large enough to measure the Seebeck coefficient along crystallographic axes were obtained. We determined the crystal orientation by Laue back...
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