Facile microwave-assisted hydrothermal synthesis of hexagonal sodium tungsten bronze and its high response to NO2 Abstract: Single-phase hexagonal sodium tungsten bronze (h-NaxWO3+x/2·yH2O) was synthesized via a microwave-assisted hydrothermal method. A reaction time of 4 min was […]
Ordering effect on the electrical properties of stoichiometric Ba3CaNb2O9-based perovskite ceramics Abstract: Cation ordering is the most common phenomenon detected in A3B′B″2O9-based complex perovskites. Some important physical features of this system are due to the […]
Photocatalytic evaluation of the magnetic core@shell system (Co,Mn)Fe2O4@TiO2 obtained by the modified Pechini method Abstract: TiO2 is a highly active photocatalyst, sometimes obtained with nanometric particle size, which improves its behavior but makes its removal […]
Metallic multilayered films electrodeposited over titanium as catalysts for methanol electro-oxidation Abstract: Multilayered Pt/Ir/Pt films were electrodeposited over titanium substrates, controlling the film thickness by the deposition charge. Two probe molecules were used to perform […]
Sb doping of VLS synthesized SnO2 nanowires probed by Raman and XPS spectroscopy Abstract: We here report the growth and structural characterization of Sb-doped SnO2 nanowires synthesized by Vapor-Liquid-Solid technique using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray […]
Red shift and higher photoluminescence emission of CCTO thin films undergoing pressure treatment Abstract: CCTO thin films were deposited on Pt(11 1)/Ti/SiO2/Si substrates using a chemical (polymeric precursor) and pressure method. Pressure effects on CCTO […]
Waveguides and nonlinear index of refraction of borate glass doped with transition metals Abstract: The ability to write 3D waveguides by femtosecond laser micromachining and the nonlinear refractive index (n2) spectrum of a new borate […]
Blue to Yellow Photoluminescence Emission and Photocatalytic Activity of Nitrogen Doping in TiO2Powders Abstract: The defects caused by doping are important for understanding the increased photocatalytic activities of TiO2:N in organic reactions and in the […]
PVDF-PAni blend: a free-standing film with variable electrical resistance Abstract: Films made of a blend of polyaniline (PAni) and a nonpolar polyvinylidene fluoride (PVDF) polymer matrix were obtained by the mechanical mixing of both, with subsequent […]
Synthesis and characterization of SnO2 center dot Nb catalysts supported on Maranhao clay Abstract: The development and optimization of heterogeneous catalysts is a fundamental step to ensure the technical and economic feasibility of new materials created […]
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