Infra-red study of the adsorption of ammonia on MgO. Part 1.—The dehydrated surface
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 68, 193-196
- https://doi.org/10.1039/f19726800193
Abstract
The adsorption of ammonia gas has been studied on dehydrated MgO. The symmetrical bending vibration ν2 of ammonia is considerably perturbed by the presence of the surface and a doubling of this band is observed at low concentrations of ammonia. Models for the nature of the adsorbed species are discussed and it is concluded that the ammonia molecule is probably hydrogen-bonded to an oxide ion in the surface. There is no evidence for Brønsted or Lewis acid sites on the surface.Keywords
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