Two-Dimensional FT-IR Correlation Analysis of the Chemisorption of Nitric Oxide on Pt(100)
- 1 February 1999
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 53 (2) , 178-183
- https://doi.org/10.1366/0003702991946505
Abstract
In addition to the previously reported vibrational frequencies of NO stretch at 1591–1650 cm−1 and 1770–1800 cm−1 on Pt(100) surface at 300 K, we observed an infrared spectral band centered around 1689–1692 cm−1. With the use of two-dimensional IR correlation analysis, we were able to distinguish the various adsorption sites of NO under the present experimental conditions. The infrared band at 1689–1692 cm−1 developed independently of the band at 1639–1654 cm−1. By varying the pressure of NO and the surface temperature, we were able to demonstrate that the 1689–1692 cm−1 band grows only at higher NO pressure and lower surface temperature.Keywords
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