TY - JOUR
T1 - Adsorption studies of water on copper, nickel, and iron using the quartz-crystal microbalance technique
T2 - Assessment of BET and FHH models of adsorption
AU - Lee, S.
AU - Staehle, R. W.
PY - 1997/2
Y1 - 1997/2
N2 - In the atmospheric corrosion of copper, nickel, and iron, the adsorption of water affects the corrosion rates. Knowledge of water adsorption and metal oxyhydroxide formation is important in understanding the atmospheric corrosion process. The purposes of the present research were (1) to measure the adsorption of water on metal surfaces as a function of temperature and relative humidity (RH) and (2) to assess Brunauer-Emmett-Teller (BET) model and Frenkel-Halsey-Hill (FHH) model for water adsorption. In the present research, the quartz-crystal microbalance (QCM) technique was used to measure the mass changes of copper, nickel, and iron at 0 to 100% RH and 7-90°C under nitrogen environments. Less water was adsorbed on copper, nickel, and iron which formed oxides than on gold. BET and FHH models could not fit the data points with single functional relationships. ΔHads° values were calculated using modified BET method and they decreased with temperature.
AB - In the atmospheric corrosion of copper, nickel, and iron, the adsorption of water affects the corrosion rates. Knowledge of water adsorption and metal oxyhydroxide formation is important in understanding the atmospheric corrosion process. The purposes of the present research were (1) to measure the adsorption of water on metal surfaces as a function of temperature and relative humidity (RH) and (2) to assess Brunauer-Emmett-Teller (BET) model and Frenkel-Halsey-Hill (FHH) model for water adsorption. In the present research, the quartz-crystal microbalance (QCM) technique was used to measure the mass changes of copper, nickel, and iron at 0 to 100% RH and 7-90°C under nitrogen environments. Less water was adsorbed on copper, nickel, and iron which formed oxides than on gold. BET and FHH models could not fit the data points with single functional relationships. ΔHads° values were calculated using modified BET method and they decreased with temperature.
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U2 - 10.1002/maco.19970480203
DO - 10.1002/maco.19970480203
M3 - Article
AN - SCOPUS:0005649043
SN - 0947-5117
VL - 48
SP - 86
EP - 94
JO - Materials and Corrosion - Werkstoffe und Korrosion
JF - Materials and Corrosion - Werkstoffe und Korrosion
IS - 2
ER -