نتایج جستجو برای: lanthanum doped bismuth ferrite
تعداد نتایج: 63548 فیلتر نتایج به سال:
Abstract For achieving tunable saturation magnetization and line width, different cations were doped into the YIG-based garnets, which standard molecular formula could be expressed as A 3 [Fe 2−x M x ](Fe 3−y N y )O 12 . Most researchers have reported a single rule of one element doping (x or y) on its magnetic properties. However, cooperation effect + to contribution was not clearly clarified....
Isotropic magnetic materials with high resonant frequencies are useful for applications in microwave devices. Undoped CoFe thin films, as common soft magnetic materials with high saturation magnetization, show isotropic characteristics but no high frequency response. Here, we use ferrite doped CoFe thin film to realize a resonant frequency higher than 4.5 GHz at all orientations. The exchange c...
This critical review summarizes the basic principles of photocatalysis, trends, challenges, and prospects perovskite type LaFeO 3 based photocatalysts in photocatalysis. Clean energy a sustainable environment are grand challenges that world is facing which can be addressed by converting solar into transportable storable fuels (chemical fuel). The main scientific technological for efficient conv...
The development of free-cutting steel is inseparable from the environmentally friendly alloy elements and control inclusions shape. Alloying can affect composition, morphology, size, distribution inclusion, which are main factors affecting machinability steel. This study selected sulfur with different chemical compositions as research object to examine effects bismuth tellurium on sulfur-contai...
We report a facile synthesis of mesoporous TiO2 with large specific surface area and rich oxygen vacancies using La-doped through high-temperature annealing. Such integration unique structure provides effective carrier transport increased active sites. The effects lanthanum on were studied experimentally theoretical calculations performed. Thermal treatment was conducted at temperatures ranging...
Textural evolution in sol-gel derived nanostructured unsupported titania membranes has been studied using differential scanning calorimetry (DSC), differential thermal analysis (DTA), thermal gravimetry (TG), X-ray diffraction (XRD) and N, adsorption. The anatase-to-rutile phase transformation kinetics were studied using the Avrami model. The precursor gel had a surface area of ca. 165 m2 g-', ...
Lanthanum cerium ferrite nanoparticles has been synthesized for the first time via hydrothermal and co-precipitation method. The structural morphological study of have examined using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) energy dispersive spectroscopy (EDX). electrochemical J1 J2 electrodes three electrode system in 6 M KOH electrolyte cyclic vol...
Gadolinia-doped ceria (GDC) is widely used as an interlayer for preventing the formation of SrZrO3 between yttria-stabilized zirconia (YSZ) electrolyte and lanthanum strontium cobalt iron oxides (LSCF) cathode solid oxide fuel cells (SOFCs). However, diffusion Gd ions to YSZ results in decrease ionic conductivity due Gd2(Zr, Ce)2O7. In present work, we focus on lanthanum-doped (LDC) LSCF cathod...
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