EXAFS OF MIXED VALENCE IRON POTASSIUM PHOSPHATE GLASSESReport as inadecuate




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Abstract : Local environment of iron in potassium-phosphate glasses has been studied by X-ray absorption spectroscopy. At small Fe2+ concentration < 5 % of total Fe, octahedral coordination is established for Fe3+. At high Fe2+ concentration > 90 %, Fe2+ is also sixfold coordinated. In intermediate cases, large amount of Fe3+ in tetrahedral environment is evidenced.





Author: F. Studer A. Le Bail

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



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