Dinitrogen as a probe of acid sites of zeolites |
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| Authors: | Fumitaka Wakabayashi Junko Kondo Kazunari Domen Chiaki Hirose |
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| Affiliation: | (1) Department of Science and Engineering, National Science Museum, 7-20 Ueno Park, Taito-ku, 110 Tokyo, Japan;(2) Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, 227 Yokohama, Japan |
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| 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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| Keywords: | N2 adsorption FT-IR H-ZSM-5 H-Y acid sites |
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