Two-dimensional FT-IR correlation analysis of the chemisorption of nitric oxide on Pt(100)

被引：39

作者：

Magtoto, NP ^{[1
]}

Sefara, NL ^{[1
]}

Richardson, HH ^{[1
]}

机构：

[1] Ohio Univ, Dept Chem, Clippinger Labs, Athens, OH 45701 USA

来源：

APPLIED SPECTROSCOPY | 1999年 / 53卷 / 02期

关键词：

chemisorption; nitric oxide; Pt(100) single crystal surface; infrared reflection-absorption spectroscopy; 2D correlation spectroscopy;

D O I：

10.1366/0003702991946505

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 1639-1653 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.

引用

页码：178 / 183

页数：6

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