نتایج جستجو برای: gel combustion technique

تعداد نتایج: 724980  

Journal: :Journal of Anaesthesiology Clinical Pharmacology 2013

Journal: :journal of nanostructures 2012
z. naemi m. jafar-tafreshi m. fazli

agal2o3 nanocomposite were synthesized by solution combustion technique using ammonium carbonate as a new fuel under simultaneous combustion of alumina and silver particles condition. samples prepared with different amount of silver, were characterized by xrd, bet, sem and optical absorption measurements. xrd analysis was used to determine the change in phase and size of the synthesized nanopar...

Journal: :Journal of Automated Methods and Management in Chemistry 2003
M. Krawczyk J. Namiesnik

A new technique is presented for continuous measurements of hydrogen contamination by air in the upper explosive limit range. It is based on the application of a catalytic combustion sensor placed in a cell through which the tested sample passes. The air content is the function of the quantity of formed heat during catalytic combustion of hydrogen inside the sensor. There is the possibility of ...

2012
A. Mishra

The complete oxidation of n-Hexane and iso-Octane was studied individually in a fixed bed tubular flow reactor over CuO-CeO2 catalysts synthesized via four different methods namely urea-nitrate combustion method, urea gelation/co-precipitation method, citric acid sol-gel method and co-impregnation method. Laser diffraction was employed in catalysts characterization. The results obtained from th...

Journal: :Chemosensors 2021

Nanocrystalline nickel manganite (NiMn2O4) powder with a pure cubic spinel phase structure was synthesized via sol-gel combustion and characterized XRD, FT-IR, XPS SEM. The mixed sodium alginate gel to form nano-biocomposite gel, dried at room temperature thick film FT-IR DC resistance AC impedance of sensor test structures obtained by drop casting the onto interdigitated PdAg electrodes on an ...

A. A. Mehrdad Sharif N. Assi, Q. S. Manuchehri Naeini

ZnO and ZrO2 photo catalysts were synthesized by sol-gel auto combustion method. The products were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Structural and morphological properties of nano particles were investigated and the average crystalline size of ZnO and ZrO2 was obtained 44 and 51 nm, respectively. Also, photo catalytic degrada...

Journal: :Energies 2022

For propulsion systems using gel fuels, reducing the fuel viscosity is essential for achieving better atomization and combustion. In this paper, we investigate flow heat transfer in a water-gel with temperature shear dependent viscosity. We consider several different channels, mimicking transport of gelled fuels systems, also look at corrugation, which way enhancing fluid mixing thus improving ...

Journal: :Results in physics 2022

In this study, a series of nanocrystalline Ni0.7Cu0.30AlxFe2-xO4 (x = 0.00 to 0.10 with step 0.02) has been synthesized through the sol–gel auto combustion technique. The structural, morphological, dielectric, and electrical properties nanoparticles are analyzed due substitution effect Al3+ content. structural study performed XRD FTIR analyses. extracted patterns assure single-phase cubic spine...

Journal: :IJMMME 2012
M. Ahmad E. Ahmed N. R. Khalid M. J. Jackson Waqar Ahmed

Nanocrystalline ZnO powders are synthesized using a quick, simple and inexpensive combustion method. Glycine and zinc nitrate, used as fuel and oxidant/cation sources respectively, were mixed together at room temperature to form a slurry or gel. A series of experiments were performed to synthesize nanoparticles for different fuel to oxidant ratios. The rate of heating and stirring greatly influ...

Journal: :Journal of Asian Ceramic Societies 2022

Metal oxide photocatalyst is a promising wastewater treatment process due to its simplicity, high efficiency, and low cost, as well being environmentally friendly non-energy consuming. The perovskite structure material, SrTi1?xNbxO3 (STNO) with x = 0, 0.01, 0.03, 0.05, was successfully synthesized by the sol-gel auto-combustion method. Samples pure phase cubic were obtained. Rietveld refinement...

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