Deposition of self-assembled monolayers in mesoporous silica from supercritical fluids

被引：81

作者：

Zemanian, TS ^{[1
]}

Fryxell, GE ^{[1
]}

Liu, J ^{[1
]}

Mattigod, S ^{[1
]}

Franz, JA ^{[1
]}

Nie, ZM ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

LANGMUIR | 2001年 / 17卷 / 26期

关键词：

D O I：

10.1021/la0107401

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Deposition of silane-based self-assembled monolayers onto mesoporous ceramic substrates has been found to be substantially faster from supercritical fluids than from typical condensed phase solutions, In addition, the monolayers so prepared display higher silane population density (6.5 vs 4.6 silanes/nm(2)), fewer defects, and greater stability than those prepared via standard solution method. A mechanistic rationale for the pressure-induced rate enhancement and reduced defect density is presented.

引用

收藏

页码：8172 / 8177

页数：6

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