POLARIZATION OF WATER-MOLECULES AT A CHARGED INTERFACE - 2ND HARMONIC STUDIES OF CHARGED MONOLAYERS AT THE AIR-WATER-INTERFACE

被引：145

作者：

ZHAO, XL ^{[1
]}

ONG, SW ^{[1
]}

EISENTHAL, KB ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT CHEM,NEW YORK,NY 10027

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 202卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(93)90041-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The second harmonic generation from charged monolayers at air/water interfaces is shown to be linearly related to the interface electric potential. This dependence is due to the polarization of water molecules in the electrostatic field of the charged monolayer. The observed linear dependence of the second harmonic field on the interface electric potential serves as the basis of a proposed method for obtaining the interface potential, which it should be noted is a nonintrusive optical method. The work presented here also indicates that the Gouy-Chapman model is valid at the air/water charged interface up to at least a 1 M total electrolyte concentration.

引用

页码：513 / 520

页数：8

共 28 条

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ADAMSON AW, 1982, PHYSICAL CHEM SURFAC

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