SURFACE ISOELECTRIC POINT OF EVAPORATED SILVER FILMS - DETERMINATION BY CONTACT-ANGLE TITRATION

被引：43

作者：

CHAU, LK

PORTER, MD

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,US DOE,DEPT CHEM,AMES,IA 50011

[2] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1991年 / 145卷 / 01期

关键词：

D O I：

10.1016/0021-9797(91)90121-N

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 [物理化学]; 081704 [应用化学];

摘要：

The dependence of the contact angle on the pH of an aqueous probe liquid has been used to examine the acid-base reactivity of the native oxide of evaporated silver films. The results indicate that the silver films have a surface isoelectric point of ∼10.4, which corresponds to a basic oxide. Thermodynamic formulas are also derived to relate the change in contact angle with the charge density of the surface. © 1991.

引用

页码：283 / 286

页数：4

共 23 条

[1]

ADAMSON AW, 1964, CONTACT ANGLE WETTAB, pCH3

[2]

ADAMSON AW, 1982, PHYSICAL CHEM SURFAC, P388

[3]

SPONTANEOUSLY ORGANIZED MOLECULAR ASSEMBLIES .1. FORMATION, DYNAMICS, AND PHYSICAL-PROPERTIES OF NORMAL-ALKANOIC ACIDS ADSORBED FROM SOLUTION ON AN OXIDIZED ALUMINUM SURFACE [J].