Premium
Determination of particle distribution in supported metal catalysts by small‐angle scattering
Author(s) -
Espinat D.,
Moraweck B.,
Larue J. F.,
Renouprez A. J.
Publication year - 1984
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889884011493
Subject(s) - dispersity , phase (matter) , characterization (materials science) , scattering , metal , particle (ecology) , catalysis , materials science , distribution function , small angle scattering , distribution (mathematics) , metal particle , analytical chemistry (journal) , optics , chemistry , physics , nanotechnology , thermodynamics , mathematics , mathematical analysis , chromatography , metallurgy , polymer chemistry , geology , biochemistry , oceanography , organic chemistry
A method of processing X‐ray small‐angle data for a three‐phase system, based on the hypothesis formulated by Goodisman, Brumberger & Cupelo [ J. Appl. Cryst. (1981), 14 , 305–308] has been extended to the determination of the polydispersity of one phase. For supported metal catalysts, the characterization of the metal phase is obtained from its correlation function evaluated from a balanced subtraction between those of the catalyst and of the support, measured in two separate experiments. A fairly good agreement with electron microscopy data is obtained.