Preferential adsorption followed by spontaneous desorption of 1-octadecanol at a solution/graphite interface

被引：3
|
作者：
Takajo, Daisuke [1 ]
Inaba, Akira [1 ]
Isoda, Seiji [2 ]
机构：
[1] Osaka Univ, Res Ctr Struct Thermodynam, Grad Sch Sci, Osaka 5600043, Japan
[2] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan
来源：
THIN SOLID FILMS | 2010年 / 519卷 / 04期
关键词：
Adsorption; Desorption; Hydrogen bonding; Scanning tunneling microscopy; Liquid-solid interface; Graphite; SCANNING TUNNELING MICROSCOPE; SELF-ASSEMBLED MONOLAYERS; CRYSTALLINE-STRUCTURES; 2-DIMENSIONAL CRYSTALS; SUBMONOLAYER COVERAGES; GRAPHITE; LIQUID; ALKANES; MOLECULES; DYNAMICS;
D O I：
10.1016/j.tsf.2010.09.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamical behavior of adsorption/desorption of 1-octadecanol on graphite was investigated by scanning tunneling microscopy under the existence of 3-imino-4,5,6,7-tetrachloroisoindolin-1-one (ITCH) in a 1-phenyloctane solution. The monolayer of 1-octadecanol was first formed preferentially, as it was the rich component, with many domains at the solution/graphite interface. The molecules at the domain boundaries were then spontaneously replaced by the ITCH molecules, keeping the hydrogen bonding of the OH head groups of 1-octadecanol. The driving force of this replacement can be explained by the difference in heats of adsorption per unit area between those two molecules. (C) 2010 Elsevier B.V. All rights reserved.
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页码：1371 / 1374
页数：4
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