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Caracterisation d'oxydes de cuivre par spectrometrie d'absorption X

✍ Scribed by B. Hannoyer; J. Dürr; G. Calas; J. Petiau; M. Lenglet

Book ID
113186297
Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
318 KB
Volume
17
Category
Article
ISSN
0025-5408

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Caracterisation d'oxydes catalyseurs a base de cuivre et de chrome par diffraction X, spectroscopie infra-rouge et reflectance diffuse
✍ G. Wrobel; J. Arsene; M. Lenglet; A. D'Huysser; J.P. Bonnelle 📂 Article 📅 1981 🏛 Elsevier Science ⚖ 479 KB

A cubic phase close to that of 3'Cr203 has been observed in copper chromite catalysts with atomic ratio 0,8 ~< Cu/Cr ~< 1,5. The infra-red spectroscopy shows that Cr 6÷ ions should be necessary for the stability of the phase. Cr 3+ ions in tetrahedral environment have been observed in all the catal