Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 106, Issue 36, Pages 9367-9371Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp020519c
Keywords
-
Categories
Ask authors/readers for more resources
CO adsorption on a Pd(111) single-crystal surface was investigated using in situ polarization modulation infrared reflection absorption spectroscopy (PM-IRAS) within the pressure range 10(-6)-800 mbar. The coverage-dependent CO overlayer structures found on the Pd(111) surface are identical throughout this pressure regime, that is, no new surface species at elevated pressures or adsorbate-induced substrate reconstructions were observed. The transition from an adsorbate superstructure dominated by bridged-bound CO to an adsorbate overlayer having 3-fold/atop CO sites was followed by varying the adsorbate pressure over 9 orders of magnitude. The derived phase diagram indicates an apparent activation energy of 44.35 +/- 1.63 kJ/mol for the bridged-to-3-fold-hollow/atop transition. A comparison between these data and recent sum frequency generation (SFG) results is made.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available