Abstract
The study of ammonia adsorption on and diffusion into thin ice films grown on a Pt(111) surface using Fourier transform infrared spectroscopy (FTIR) and thermal desorption spectroscopy was presented. An intriguing feature at 1470 cm-1 in the FTIR spectra was detected after exposing the crystalline ice film to ammonia molecules at 45 K. A feature at 1260 cm-1, which appears after annealing the ammonia/ice film, was also detected. It was shown that the feature corresponds to the ammonia molecules which reach the ice/Pt(111) interface through the ice film.
Original language | English |
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Pages (from-to) | 4331-4338 |
Number of pages | 8 |
Journal | Journal of Chemical Physics |
Volume | 121 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2004 Sept 1 |