Abstract
Nitrogen adsorption on SiO2, γ-Al2O3, TiO2, and sulphated zircona (SO 42- /ZrO2) is studied by Fourier transform IR spectroscopy. Integrated absorption coefficients for the bands due to the N—N vibrations in nitrogen complexes with Brønsted and Lewis acid sites are determined. A general correlation between integrated absorption coefficients and the positions of N—N bands of nitrogen interacting with the above sites in zeolites and oxides is discussed. The orientation of a nitrogen molecule relative to Brønsted and Lewis acid sites is calculated ab initio using a 6-31G** basis set.
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Translated from Kinetika i Kataliz, Vol. 46, No. 1, 2005, pp. 115–121.
Original Russian Text Copyright © 2005 by Malyshev, Paukshtis, Malysheva.
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Malyshev, M.E., Paukshtis, E.A. & Malysheva, L.V. Interaction of N2 with the acid sites of oxides. Kinet Catal 46, 107–113 (2005). https://doi.org/10.1007/PL00021993
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DOI: https://doi.org/10.1007/PL00021993