Affinity transformation from hydrophilicity to hydrophobicity of water molecules on the basis of adsorption of water in graphitic nanopores

被引：129

作者：

Ohba, T ^{[1
]}

Kanoh, H ^{[1
]}

Kaneko, K ^{[1
]}

机构：

[1] Chiba Univ, Fac Sci, Dept Chem, Chiba 2638522, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 05期

关键词：

D O I：

10.1021/ja038842w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of water with hydrophobic surfaces is quite important in a variety of chemical and biochemical phenomena. The coexistence of water and oil can be realized by introduction of surfactants. In the case of water vapor adsorption on graphitic nanopores, plenty of water can be adsorbed in graphitic nanopores without surfactants, although the graphitic surface is not hydrophilic. Why are water molecules adsorbed in hydrophobic nanopores remarkably? This work can give an explicit insight to water adsorption in hydrophobic graphite nanopores using experimental and theoretical approaches. Water molecules are associated with each other to form the cluster of 1 nm in size, leading to a significant stabilization of the cluster in the graphitic nanopores. This mechanism can be widely applied to interfacial phenomena relating to coexistence of water and nanostructural materials of hydrophobicity.

引用

页码：1560 / 1562

页数：3

共 21 条

[1] Cluster-mediated filling of water vapor in intratube and interstitial nanospaces of single-wall carbon nanohorns [J].