Adsorption of water on gold

被引：19

作者：

Lee, S ^{[1
]}

Staehle, RW ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,CORROS RES CTR,MINNEAPOLIS,MN 55455

来源：

CORROSION | 1996年 / 52卷 / 11期

关键词：

atmospheric corrosion; copper; corrosion rate; gold; iron; nickel; quartz-crystal microbalance technique; relative humidity; water adlayer electrolyte; water adsorption;

D O I：

10.5006/1.3292076

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the atmospheric corrosion of copper, nickel, and iron, adsorption of water affects corrosion rates. Knowledge of water adsorption and metal oxyhydroxide formation is important in understanding the atmospheric corrosion process. Gold provides a model system because it retains its surface characteristics throughout adsorption experiments, The quartz-crystal microbalance (QCM) technique was used to measure the mass change of gold at 0% to 100% relative humidities (RH) and from 7 degrees C to 90 degrees C under nitrogen (N-2) environments. Shapes of the Isotherms suggested capillary condensation and filling of pores, in addition to physical adsorption, occur on gold and are more significant at higher temperatures. Adsorption isotherms observed were of Type III and Type IV according to the Brunauer-Emmett-Teller (BET) classification.

引用

页码：843 / 852

页数：10

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