Structural study of small catalytic particles using differential anomalous x-ray scattering
- 15 February 1987
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 86 (4) , 2352-2355
- https://doi.org/10.1063/1.452134
Abstract
Using the differential anomalous x‐ray scattering (DAXS) technique, the diffuse diffraction pattern associated with small Pt particles has been successfully separated from the strong scattering of crystalline η‐Al2O3 as well as amorphous SiO2 supports. For samples with ≳2.5 wt. % Pt loading, the differential diffraction patterns unambiguously reveal that the Pt clusters are fcc microcrystals. The results demonstrate the feasibility of DAXS technique in structural study of catalytic particles and its advantage over EXAFS in revealing long‐range structure.Keywords
This publication has 11 references indexed in Scilit:
- Dynamic Atomic-Level Rearrangements in Small Gold ParticlesScience, 1986
- Structure of poorly crystalline MoS2 — A modeling studyJournal of Non-Crystalline Solids, 1986
- Study of supported platinum catalysts by anomalous scatteringJournal of Catalysis, 1985
- Application of EXAFS in Catalysis. Structure of Bimetallic Cluster CatalystsCatalysis Reviews, 1984
- Application of Differential Anomalous X-Ray Scattering to Structural Studies of Amorphous MaterialsPhysical Review Letters, 1981
- Extended X-ray absorption fine structure (EXAFS) studies of highly dispersed platinum catalystsJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1980
- Dispersion and structure of platinum-iridium catalystsJournal of Catalysis, 1979
- Pt/SiO2II. Characterization of the gel and the platinum particles by X-Ray diffractionJournal of Catalysis, 1977
- Frequency modulated X-ray diffraction I. Determination of partial structure factorsPhilosophical Magazine, 1977
- Highly Dispersed Catalytic MaterialsAnnual Review of Materials Science, 1972