TY - JOUR
T1 - Adsorption complexes of methanol on zeolite ZSM-5
AU - Mirth, Gabriele
AU - Lercher, Johannes A.
AU - Anderson, Michael W.
AU - Klinowski, Jacek
PY - 1990
Y1 - 1990
N2 - Infrared spectroscopy, 1H MAS NMR and thermogravimetric analysis have been used to study the chemistry of methanol adsorbed on zeolites H-ZSM-5, Na-ZSM-5 and K-ZSM-5. On H-ZSM-5, methanol forms the CH3OH2+ methoxonium ion at low coverages. At higher coverages, large protonated clusters of strongly hydrogen-bonded molecules associated with the Brønsted-acid sites are present. In zeolites Na-ZSM-5 and K-ZSM-5 methanol is coordinatively adsorbed on the cation and forms weakly hydrogen-bonded clusters at higher equilibrium pressures.
AB - Infrared spectroscopy, 1H MAS NMR and thermogravimetric analysis have been used to study the chemistry of methanol adsorbed on zeolites H-ZSM-5, Na-ZSM-5 and K-ZSM-5. On H-ZSM-5, methanol forms the CH3OH2+ methoxonium ion at low coverages. At higher coverages, large protonated clusters of strongly hydrogen-bonded molecules associated with the Brønsted-acid sites are present. In zeolites Na-ZSM-5 and K-ZSM-5 methanol is coordinatively adsorbed on the cation and forms weakly hydrogen-bonded clusters at higher equilibrium pressures.
UR - http://www.scopus.com/inward/record.url?scp=37049076876&partnerID=8YFLogxK
U2 - 10.1039/FT9908603039
DO - 10.1039/FT9908603039
M3 - Article
AN - SCOPUS:37049076876
SN - 0956-5000
VL - 86
SP - 3039
EP - 3044
JO - Journal of the Chemical Society, Faraday Transactions
JF - Journal of the Chemical Society, Faraday Transactions
IS - 17
ER -