ISSN:
1572-879X
Keywords:
XANES
;
iron fluoride
;
chromium fluoride
;
Lewis acid sites
;
dehydrochlorination
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract In this X-ray absorption near-edge structure (XANES) study we focused our interest on co-precipitated Fe and Cr fluorides. Compounds with a low Cr content are catalytically active in the dehydrochlorination of 1,1,1-trichloroethane. XANES reveals for these samples an incorporation of a modified CrF3-x(OH)x pyrochlore structure into the β-FeF3 host lattice and an electron-deficient Cr 3d orbital, which may act as a Lewis acid site in the catalytic process.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019081401017
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