Abstract
Nitrogen adsorption on H-ZSM-5 and H-Y zeolites at low temperatures were studied by in situ FT-IR spectroscopy. For each zeolite, two absorption bands were observed at around 2334 and 2352 cm−1 in thev(NN) region and were assigned to thev(NN) mode of dinitrogen species adsorbed on Brønsted and Lewis acid sites of the zeolites, respectively. These results and previous results for H-mordenite suggest that dinitrogen serves as a probe of acid sites and its advantages as probe are discussed.
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F. Wakabayashi, J. Kondo, K. Domen and C. Hirose, to be published.
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Wakabayashi, F., Kondo, J., Domen, K. et al. Dinitrogen as a probe of acid sites of zeolites. Catal Lett 21, 257–264 (1993). https://doi.org/10.1007/BF00769477
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DOI: https://doi.org/10.1007/BF00769477