STRUCTURAL STUDIES BY EXAFS-XANES SPECTROSCOPIES OF THE ACTIVE SPECIES CATALYSING THE OXYCHLORATION OF ETHYLENEReport as inadecuate




STRUCTURAL STUDIES BY EXAFS-XANES SPECTROSCOPIES OF THE ACTIVE SPECIES CATALYSING THE OXYCHLORATION OF ETHYLENE - Download this document for free, or read online. Document in PDF available to download.



Abstract : In order to characterize the structure of the active copper centers involved in the catalytic oxychloration of ethylene, we have recorded the copper K-edge spectra of several yet unused catalysts and of -test- samples taken out from industrial reactors. Whereas the FT spectra of unused catalysts exhibit marked similarities with the spectrum of atacamite, notable changes associated with the coordination of chlorine atoms are observed in the FT spectra of used catalysts. Preliminary results regarding the measurements of chlorine K-edge XANES spectra recorded with a novel fluorescence detector are presented.





Author: M. Loos J. Goulon M. Bertucci R. Bachelard

Source: https://hal.archives-ouvertes.fr/



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