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Further evidence of incorporation of chromium ions into the framework of silicoaluminophosphate molecular sieves

✍ Scribed by Goldwasser, J. ;Machado, F. J. ;Méndez, B. ;López, C. M. ;Ramirez, M. M.


Publisher
Springer
Year
1999
Tongue
English
Weight
268 KB
Volume
67
Category
Article
ISSN
0133-1736

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A chromium-substituted silicoaluminophosphate molecular sieve (CrAPSO-11) and a Cr-supported SAP041 molecular sieve (Cr/SAPO-11) were studied by XPS and rednctiowxidation (redox) cycles. The distribution of oxidation states as well as the average oxidation state for chromium were determined for both