Multilayer influences on the monolayer structure for NO on Pt{110}-(1x2)

被引：12

作者：

Brown, WA ^{[1
]}

Sharma, RK ^{[1
]}

Ge, QF ^{[1
]}

King, DA ^{[1
]}

机构：

[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1999年 / 1卷 / 08期

关键词：

D O I：

10.1039/a900850k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of NO on Pt{110}-(1 x 2) has been studied in detail in the temperature range from 30 to 400 K. At 30 K, physisorbed multilayers of (NO)(2) are formed after high exposures of NO to the surface. It is found that the presence of physisorbed multilayers influences the underlying chemisorbed adlayer. After heating a surface that contains both chemisorbed and physisorbed NO species, to remove the multilayer, only an atop NO species remains. This species is less stable than bridged NO at low coverages. After annealing a surface on which only chemisorbed NO is present, both atop NO and bridged NO are observed. Hence the physisorbed overlayer partially incorporates into the chemisorbed layer to produce an unusually dense monolayer.

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页码：1995 / 2000

页数：6

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