Kinetics of alkanethiol monolayer desorption from gold in air.
Thermal desorption of an alkanethiol monolayer from a gold substrate into a gaseous medium under ambient pressure was investigated using XPS and it was found that there exist 2 consecutive 1st order kinetics mechanisms with activation energies of 29.9 and 32.7 kcal mol(-1), respectively, i.e. on average approximately 15% higher than reports for liquid media desorption.
Shadnam
Mohammad Reza
MR
Surface Engineering and Instrumentation Laboratory, University of Alberta, Edmonton, Canada.
Amirfazli
A
A
D000327:Adsorption; D000388:Air; D000473:Alkanes / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D007700:Kinetics; D008567:Membranes, Artificial; D012680:Sensitivity and Specificity; D013053:Spectrophotometry; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D013499:Surface Properties; D013997:Time Factors; D014965:X-Rays
D000473:Alkanes; D008567:Membranes, Artificial; D013438:Sulfhydryl Compounds; D006046:Gold