Interaction of nitric oxide with supported chromium, molybdenum, and tungsten catalysts

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The interaction of NO with alumina-supported catalysts prepared from Cr(CO)6, Mo(CO)6, and W(CO)6 has been investigated by means of infrared and EPR spectroscopy. Adsorption of NO on Cr(CO)6---Al2O3 produces Cr2+ and Cr3+ nitrosyl species identical to those found on reduced CrO3---Al2O3. A paramagnetic Mo+NO+ species has been detected on Mo(CO)6---Al2O3, but the majority species on this catalyst is a Mo4+ dinitrosyl complex identical to that found on MoO3---Al2O3. A corresponding W4+ dinitrosyl complex is formed on W(CO)6---Al2O3.

Original languageEnglish
Pages (from-to)447-455
Number of pages9
JournalJournal of Catalysis
Issue number2
Publication statusPublished - Jun 1980

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