Influence of buried hydrogen-bonding groups within monolayer films on gas-surface energy exchange and accommodation

被引：46

作者：

Ferguson, MK ^{[1
]}

Lohr, JR ^{[1
]}

Day, BS ^{[1
]}

Morris, JR ^{[1
]}

机构：

[1] Virginia Tech, Dept Chem, Blacksburg, VA 24061 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.92.073201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Self-assembled monolayers (SAMs) of carbonyl-containing alkanethiols on gold are employed to explore the influence of hydrogen-bonding interactions on gas-surface energy exchange and accommodation. H-bonding, COOH-terminated SAMs are found to produce more impulsive scattering and less thermal accommodation than non-H-bonding, COOCH3-terminated monolayers. For carbamate-functionalized SAMs of the form Au/S(CH2)(16)OCONH(CH2)(n-1)CH3, impulsive scattering decreases and accommodation increases as the H-bonding group is positioned farther below the terminal CH3.

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页数：4

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