Journal article
Adsorptive and catalytic properties of supported metal oxides. 2. Infrared spectroscopy of nitric oxide adsorbed on supported iron oxides
Journal of physical chemistry (1952), Vol.90(8), pp.1625-1630
04/01/1986
DOI: 10.1021/j100399a034
Abstract
nfrared spectroscopy of adsorbed nitric oxide was used to probe the nature of ferrous cations supported at low loadings (ca. 1%) on SiO2, Al2O3, TiO2, MgO, and ZnO. Ferrous cations on all of these supports gave rise to two mononitrosyl species, which appear in infrared spectra near 1810 and 1750 cm-1. These bands are attributed to ferrous cations of different coordination, with the band at lower frequency due to cations of lower coordination. Dinitrosyl species were observed on silica-supported iron, giving rise to a pair of infrared bands at 1900 and 1790 cm-1. These can be attributed to the adsorption of two NO molecules by a ferrous cation which is highly coordinatively unsaturated. These dinitrosyl species may also be present to a small extent on titania-supported iron. It is suggested that the coordination number of the supported ferrous cation is lower on oxide supports for which the coordination number of the oxygen anions is lower.
Details
- Title: Subtitle
- Adsorptive and catalytic properties of supported metal oxides. 2. Infrared spectroscopy of nitric oxide adsorbed on supported iron oxides
- Creators
- D. G RethwischJ. A Dumesic
- Resource Type
- Journal article
- Publication Details
- Journal of physical chemistry (1952), Vol.90(8), pp.1625-1630
- DOI
- 10.1021/j100399a034
- ISSN
- 0022-3654
- eISSN
- 1541-5740
- Publisher
- American Chemical Society
- Language
- English
- Date published
- 04/01/1986
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984003970902771
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