Determination of metal crystallite size and morphology in supported nickel catalysts
作者： Donald G Mustard , Calvin H Bartholomew
DOI: 10.1016/0021-9517(81)90271-2
关键词: Particle size 、 Chemistry 、 Sintering 、 Nickel 、 Analytical chemistry 、 Inorganic chemistry 、 Adsorption 、 Microstructure 、 Nanocrystalline material 、 Crystallite 、 Chemisorption
摘要: Abstract The application of H2 chemisorption, X-ray diffraction (XRD) line broadening, and transmission electron microscopy (TEM) to the determination metal crystallite size distribution in Ni SiO 2 , Al O 3 TiO catalysts having wide ranges nickel loadings dispersions was investigated. Average diameters estimated from chemisorption TEM were found be very good agreement over dispersion loading system for a 15% ; poor evident system, results suggesting that adsorption suppressed. In few samples where it possible obtain information XRD, estimates diameter generally or fair with those TEM. specific limitations these three techniques their study sintering support interactions supported are presented discussed.
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