Abstract
A vacuum quartz crystal microbalance (QCM) apparatus was used to measure water adsorption isotherms on mercaptohexadecanoic acid (HS(CH2)15COOH-MHA) self assembled monolayers (SAMs) on Au coated quartz crystals. Isotherms measured over a temperature range of 20-45 degrees C are consistent with a strong interaction between adsorbed water and the COOH terminated surface of the SAM. From comparisonof our data with calculated BET isotherms we estimate the isosteric heat of adsorption for this system to be ca. 12 kcal/mol.
Original language | American English |
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Pages (from-to) | L371-L374 |
Journal | Surface Science |
Volume | 355 |
DOIs | |
State | Published - 1996 |
NREL Publication Number
- NREL/JA-21638