Infrared spectroscopic study of the adsorption of nitro compounds and amines on cobalt oxide
- Leiden Univ. (Netherlands)
The adsorption of nitrobenzene on unsupported and SiO{sub 2}-supported Co{sub 3}O{sub 4} and a range of adsorbed reaction products of nitrobenzene are studied by infrared spectroscopy. Products observed after adsorption of nitrobenzene on Co{sub 3}O{sub 4} are aniline, azoxybenzene, and cyclohexylamine (reduction products) at lower temperatures and carbonates and cyanates (oxidation products) at higher temperatures. One of the supported cobalt oxides appears to be very different from the pure Co{sub 3}O{sub 4}, probably due to cobalt silicate formation during its synthesis. With all samples, the surface reactivity and adsorption of gases are mostly related to hydroxyl groups, and Lewis acid sites are also present on the surface. 50 refs., 3 figs., 6 tabs.
- OSTI ID:
- 98926
- Journal Information:
- Journal of Catalysis, Journal Name: Journal of Catalysis Journal Issue: 2 Vol. 149; ISSN 0021-9517; ISSN JCTLA5
- Country of Publication:
- United States
- Language:
- English
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