期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 107, 期 47, 页码 13090-13092出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp0350363
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In situ DRIFTS was used to investigate the formation and reactivity of surface species on Ag/Al2O3 during partial oxidation of CH3CHO, C2H5OH, and C3H6. The exposure of Ag/Al2O3 to CH3CHO/C2H5OH/C3H6 + 02 in a steady state leads to the formation of two kinds of partial oxidation products: acetate and a novel enolic surface species. Peaks at 1633, 1416, and 1336 cm(-1) are assigned to an adsorbed enolic species. The adsorbed enolic species is more prone to react with NO + O-2 on Ag/Al2O3 than acetate is, and plays a crucial role in the formation of NCO, which is a key intermediate during selective catalytic reduction of NO.
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