A nanoscale gas state

被引：245

作者：

Zhang, Xue H. ^{[1
]}

Khan, Abbas ^{[1
]}

Ducker, William A. ^{[1
]}

机构：

[1] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.98.136101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that a very thin (5-80 nm) gas phase can exist for a long time (> 1 h) at the interface between a hydrophobic solid and water. We create the gas phase from CO2, which allows us to determine the chemical identity, phase state, and density via infrared spectroscopy. The average density reveals that the gas is at approximately atmospheric pressure, which explains the unexpectedly long lifetime of the gas phase under ambient conditions. The nanoscale gas phase is reproducibly created under conditions where gas solubility is varied.

引用

页数：4

共 33 条

[1] Nanobubbles and the hydrophobic attraction [J].

Attard, P .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2003, 104 (1-3) :75-91

[2] Chemical physics: How to keep dry in water [J].

Ball, P .

NATURE, 2003, 423 (6935) :25-26

[3] Direct measurements of the force between hydrophobic surfaces in water [J].

Christenson, HK ;

Claesson, PM .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2001, 91 (03) :391-436

[4] Determination of molecular order in supported lipid membranes by internal reflection Fourier transform infrared spectroscopy [J].

Citra, MJ ;

Axelsen, PH .

BIOPHYSICAL JOURNAL, 1996, 71 (04) :1796-1805

[5] Direct measurement of hydrophobic forces: A study of dissolved gas, approach rate, and neutron irradiation [J].

Craig, VSJ ;

Ninham, BW ;

Pashley, RM .

LANGMUIR, 1999, 15 (04) :1562-1569

[6] Gas enrichment at liquid-wall interfaces [J].

Dammer, Stephan M. ;

Lohse, Detlef .

PHYSICAL REVIEW LETTERS, 2006, 96 (20)

[7] On fluid/wall slippage [J].

de Gennes, PG .

LANGMUIR, 2002, 18 (09) :3413-3414

[8] The hydrophobic force: nanobubbles or polymeric contaminant? [J].

Evans, DR ;

Craig, VSJ ;

Senden, TJ .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2004, 339 (1-2) :101-105

[9] ROTATION-VIBRATION SPECTRA OF DEUTERATED WATER VAPOR [J].

GAILAR, N ;

PLYLER, EK .

JOURNAL OF CHEMICAL PHYSICS, 1956, 24 (06) :1139-1165

[10] The influence of dissolved gas on the interactions between surfaces of different hydrophobicity in aqueous media Part II. A spectroscopic study [J].

Gong, WQ ;

Stearnes, J ;

Fornasiero, D ;

Hayes, RA ;

Ralston, J .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1999, 1 (11) :2799-2803

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