K W Hipps - Stability of a Surface Adlayer at Elevated Temperature:  Coronene and Heptanoic Acid on Au(111)

Document created by K W Hipps on Mar 9, 2017
Version 1Show Document
  • View in full screen mode

  Publication Details (including relevant citation   information):

  English, William A., Hipps, K. W. The Journal of Physical   Chemistry C 2008 112 (6) 2026-2031

  Abstract: The temperature dependence of the   stability of the adlayer formed at the interface between Au(111)   and a coronene-heptanoic acid solution is reported. At coronene   concentrations above 1.5 × 10-4 M and at 21 °C, a dense coronene   adlayer is observed. At higher temperatures (up to about 60 °C)   or in a more dilute solution, a coadsorbed coronene-heptanoic   acid structure is observed. This coadsorbed structure is very   hardy, surviving exposure to the pure solvent for periods of many   minutes and temperatures as high as 105 °C. Loss of the ordered   monolayer with high temperature solvent exposure is also   accompanied by the formation of at least two additional surface   structures involving both coronene and heptanoic acid. This work   demonstrates that there is much to be learned by exploring the   solution-solid interface at elevated temperatures with STM.

  Address (URL): http://dx.doi.org/10.1021/jp076642r