نتایج جستجو برای: gel combustion technique
تعداد نتایج: 724980 فیلتر نتایج به سال:
Nanoparticles of CoGdxFe2 ? xO4 (x = 0%, 25%, 50%) synthesized via sol–gel auto combustion technique and encapsulated within a polymer (Eudragit E100) shell containing curcumin by single emulsion solvent evaporation were formulated in this study. Testing nanoparticles was carried out using different characterization techniques, to investigate composition, crystallinity, size, morphology, surfac...
Combustion behaviour of coal and biomass are different due to difference in their physical and chemical properties. Thermogravimetric analysis is a useful technique to determine combustion characteristics of coal/biomass blends. This study elaborates the lab scale findings of co-combustion experiments in Thermogravimetric analyzer (TGA) [in which Differential Scanning Calorimetric (DSC) and The...
Gd2O3 nanoparticles were synthesized for the first time by sol-gel combustion method and YBCO high temperature superconductor by sol-gel method. X-ray powder diffraction pattern of the nanoparticles and prepared superconductor showed single phase by both methods. The average size of Gd2O3 nanoparticles, according to the Scherrer formula, computed 29 nm, which is consistent with the results obta...
Metal-oxide (MO) semiconductors have emerged as enabling materials for next generation thin-film electronics owing to their high carrier mobilities, even in the amorphous state, large-area uniformity, low cost, and optical transparency, which are applicable to flat-panel displays, flexible circuitry, and photovoltaic cells. Impressive progress in solution-processed MO electronics has been achie...
The paper presents the results of a detailed study process and products combustion during self-propagating high-temperature synthesis (SHS) ZnO zinc oxide powder from mixtures such common reagents as oxidizer nitrate reducing agent (fuel) glycine, well application synthesized highly dispersed submicron nanosized for phenol photocatalytic decomposition under action ultraviolet irradiation. An aq...
In this paper, LaBO3 perovskite type catalyst formulations were prepared by sol-gel auto combustion method using citric acid as the fuel. Activity of catalysts was tested in catalytic oxidation of toluene as a model of volatile organic compounds. LaCoO3 perovskite formulation showed the highest activity among LaBO3 (Fe, Mn and Co) perovskite catalysts. So, LaCoO3 perovskite based catalyst was s...
In this research, the nanopowders of lanthanum and neodymium co-doped yttria were synthesized by sol-gel combustion method. Citric acid and glycine were used as the gel maker and fuel respectively. The effect of molar ratio of citric acid to glycine on the grain size and morphology was evaluated. The optimized products were characterized by X-ray diffraction (XRD), field-emission scanning ...
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