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Showing 1 to 12 of 12 for “"BET method"”.
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Combustion of aerosolized spherical aluminum powders and flakes in air
… determined using the Brunauer-Emmett-Teller (BET) method and respective "BET diameters". It is observed that the rates of pressure rise and rates of flame propagation were higher for aluminum powders with BET diameters of about 2 to 5 um compared to aluminum flakes for which the BET diameters …
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The preparation and characterization of thermo-sensitive colored hydrogel film and surfactant-free porous polystyrene three-dimensional network.
… to prove the crosslinking mechanism, also the BET method was used to measure the adsorption and desorption of polystyrene network. The BET constant (C) is calculated (C=6.32). The chemically bonded polymer nanoparticle network might have potential applications as catalyst or used for …
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Synthèse de nanoparticules de carbure de fer dans un réacteur à plasma inductif
… reaction. Two different injection methods were used in this study. Suspension injection was used because of its capability to inject heterogeneous precursors, and solid injection was used to inject reactants with any desired molar ratio. The effect of several process parameters was …
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Toxicity of manufactured particulate materials on plant root growth
… techniques of FTIR, SEM/EDS, the BET method, and particle size analysis, as well as liquid phase coating techniques were applied simultaneously to facilitate the study on toxicological mechanisms of these manufactured particles. The results indicate that phytotoxicity of particles …
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THE REACTIVITY OF SOME TRANSITION METAL NITRIDES AND CARBIDES
… estimation of average crystallite size by the BET method utilizing the adsorption of nitrogen gas at -196 X are explained along with the application of x-ray dififractometry ajid scanning electron microscopy to work in this area. In this present research selected transition metal nitrides and …
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Study of catalysts with high stability for proton exchange membrane fuel cells
… analysis (TGA). The Brunauer, Emmett and Teller (BET) method was applied to test the surface area of the catalysts. The electrochemical surface area (ECSA) and mass activity during oxygen reduction reaction (ORR) process for two kinds of catalyst were tested by cyclic voltammetry method under …
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Bismuth Tungstate Photocatalysis for N-Nitrosamines Removal from Amine Washing Wastewater
… Nitrogen adsorption–desorption measurements (BET method) used to determine the surface area, pore size and pore volume, X- ray diffraction (XRD) to determine the crystalline size of catalyst, UV-vis spectroscopy to analyze the light absorption property and band gap energy of the catalyst, …
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Computational Techniques for Studying Nanoporous Materials
… Chapter 7 begins with a derivation of the BET equation from first principles. We follow this up with a discussion on how the BET equation can be used to calculate the BET area, i.e. BET method, and some state-of-the-art problems with this method. Finally, we introduce an algorithmic …
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Interfacial cationic polymerization and its application in microencapsulation
… nitrogen gas adsorption at low temperature using BET method. Values of 0.074, 3.14 and 1.69 m²/g were obtained for KCI, β-estradiol and 5-aminosalicylic acid, respectively. The adsorption of α-monoolein on the three drug powders was analyzed using the Lauda Surface Balance, which indicated that …
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Influencia de la compactación y conservación de probetas durante su permanencia en obra, así como su posterior refrentado en la resistencia a compresión del hormigón (período 1997-2007)
… de la compactacion y conservacion de las probetas durante su permanencia en obra, asi como su posterior refrentado en la resistencia a compresion del hormigon. Para todo ello, se conservaron probetas bajo tres condiciones climaticas diferentes para posteriormente realizar ensayos de …
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Arc-discharge In Solution: A Novel Synthesis Method For Carbon Nanotubes And In Situ Decoration Of Carbon Nanotubes With Nanoparticles
… is to bridge the crucial dimensional gap between the atomic and molecular fundamental sciences and microstructural scale of engineering. Accordingly, it is very important to have an in-depth understanding of the synthesis of nanomaterials for the use of state-of-the-art high technological …
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Simulated solar light assisted photocatalytic degradation of organic matters
… Nanosized ZnO was characterized by different methods, including UV–Vis diffuse reflectance spectrum (UV–Vis DRS), X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) method, etc. The effects of influential experimental parameters on decolorization …