نتایج جستجو برای: rutile
تعداد نتایج: 2508 فیلتر نتایج به سال:
Via the combination of an electrospinning method with a hydrothermal reaction, a large-scale cedar-like hierarchical nanostructured TiO(2) film with an anatase/rutile composite phase was fabricated.
A core-shell photoanode, composed of a monoclinic WO3 nanorods core encapsulated with a rutile TiO2 nanoparticles shell, reveals ~246% enhancement in power conversion efficiency due to improved current density and open circuit voltage values and longer-lived charge carriers.
monometallic and bimetallic ni and co catalytic nanoparticles supported on titanium dioxide (rutile phase) substrate were prepared by wet impregnation method. these nanoparicles were used as catalysts for synthesis of multiwalled carbon nanotubes (mwcnts) from acetylene decomposition at 700°c by the catalytic chemical vapor deposition (ccvd) technique. the nanomaterials (catalyst and cnts) were...
The geochemistry of detrital rutile grains, which are extremely resistant to weathering, was used in a provenance study the transgressive Albian quartz sands southern part extra-Carpathian Poland. Rutile grains were sampled from eight outcrops and four boreholes located on Miechów, Szydłowiec, Puławy Segments. crystallization temperatures calculated using Zr-in-rutile geothermometer, allowed fo...
Method of electric arc synthesis composite microparticles metal-semiconductor-dielectric based on titanium, titanium nitride and rutile with productivity up to 10 g/min is proposed. Using diffraction microscopic methods, the morphology structural-phase composition synthesized were studied. example methylene blue degradation, photocatalytic activity in visible radiation range was demonstrated it...
Flame synthesis of hierarchical nanotubular rutile titania derived from natural cellulose substance.
Hierarchical nanotubular rutile titania material was fabricated by facile flame burning of ultrathin titania gel film coated cellulose nanofibres of commercial cellulose substance (filter paper), which possesses efficient photocatalytic performance for degradation of organic dye (methylene blue) under ultraviolet irradiation.
Driven by the need for new cathode battery materials with high energy density, fluorides have emerged as promising candidates due to their high voltages. From high throughput computations, dirutile LiMnF4 was identified as a promising cathode with a high conversion voltage and a theoretical specific capacity of 584 mAh/g. In this work, we study the formation of dirutile LiMnF4 through a new, lo...
In sputtering deposition process of TiO2, metal Ti or sintered TiO2 target is used as deposition source. In this study, we have compared the characteristic of target materials. When TiO2 target was used, stoichiometric TiO2 films was deposited under the Ar atmosphere containing 1.0% of oxygen. The highest sputtering rate under this atmosphere was 3.9nm/min at 3.4W/cm2. But, sintered TiO2 target...
Recyclable aggregates of mesoporous titania with different anatase-rutile ratios have been prepared by thermal treatments of either amorphous or peptized precursors. These last two have been obtained by hydrolysis of either Ti(OC₂H₅)₄ or of Ti(OC₂H₅)₄ in mixture with 5 mol % Zr(OC₃H₇)₄ at room temperature in the presence of NH₄OH as a catalyzing agent. The anatase-rutile ratio, the recyclable a...
The results of first principles electronic structure calculations for the metallic rutile and the insulating monoclinic M1 phase of vanadium dioxide are presented. In addition, the insulating M2 phase is investigated for the first time. The density functional calculations allow for a consistent understanding of all three phases. In the rutile phase metallic conductivity is carried by metal t2g ...
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