Journal of Catalysis

Mode of migration of isocyanate from palladium to silica

…, SD Worley, NW Hoffman, DH Ash, J Gautney

文献索引：Paul, D. K.; Worley, S. D.; Hoffman, N. W.; Ash, D. H.; Gautney, J. Journal of Catalysis, 1989 , vol. 120, p. 272 - 277

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被引用次数: 12

摘要

Abstract The reaction of CO and NH 3 over preoxidized PdSiO2 has been studied using infrared spectroscopy to identify surface species. An isocyanate (NCO) surface intermediate on Pd providing an infrared band at 2168 cm− 1 was detected after heating to 500 K and subsequent cooling to ambient temperature. No migration of NCO from Pd to the SiO 2 support was observed. However, the decomposition of formamide over preoxidized ...