Adsorption of Water on Gold

S. Lee; R. W. Staehle

doi:10.5006/1.3292076

Adsorption of Water on Gold

S. Lee, R. W. Staehle

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

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Abstract

In the atmospheric corrosion of copper, nickel, and iron, adsorption of water affects corrosion rates. Knowledge of water adsorption and metal oxy hydroxide 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°C to 90°C under nitrogen (N₂) 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.

Original language	English (US)
Pages (from-to)	843-852
Number of pages	10
Journal	Corrosion
Volume	52
Issue number	11
DOIs	https://doi.org/10.5006/1.3292076
State	Published - Nov 1996

Keywords

Atmospheric corrosion
Copper
Corrosion rate
Gold
Iron
Nickel
Quartz-crystal microbalance technique
Relative humidity
Water adlayer electrolyte
Water adsorption

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title = "Adsorption of Water on Gold",

abstract = "In the atmospheric corrosion of copper, nickel, and iron, adsorption of water affects corrosion rates. Knowledge of water adsorption and metal oxy hydroxide 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°C to 90°C under nitrogen (N2) 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.",

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T1 - Adsorption of Water on Gold

AU - Lee, S.

AU - Staehle, R. W.

PY - 1996/11

Y1 - 1996/11

N2 - In the atmospheric corrosion of copper, nickel, and iron, adsorption of water affects corrosion rates. Knowledge of water adsorption and metal oxy hydroxide 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°C to 90°C under nitrogen (N2) 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.

AB - In the atmospheric corrosion of copper, nickel, and iron, adsorption of water affects corrosion rates. Knowledge of water adsorption and metal oxy hydroxide 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°C to 90°C under nitrogen (N2) 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.

KW - Atmospheric corrosion

KW - Copper

KW - Corrosion rate

KW - Gold

KW - Iron

KW - Nickel

KW - Quartz-crystal microbalance technique

KW - Relative humidity

KW - Water adlayer electrolyte

KW - Water adsorption

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JO - Corrosion

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ER -

Adsorption of Water on Gold

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