The effect of surface ion-induced defects on CO adsorption on polycrystalline Ni

被引:0
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作者
S. N. Trukhan
V. P. Ivanov
机构
[1] Boreskov Institute of Catalysis,
关键词
Ion-induced adsorption; Ni; CO; defects;
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摘要
CO adsorption on polycrystalline nickel was investigated by dynamic secondary ion mass-spectroscopy at 10−5–10−3 Pa and 300–500 K. An increase of secondary ion currents NiCO+/Ni+ ratio was found in the range from 300 to 350 K, while at T>350 K it decreased sharply. These data were explained by a kinetic model, in which adsorption and desorption of tightly bound CO goes through weakly bound CO formed due to ion-induced defects.
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页码:355 / 362
页数:7
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