Low temperature CO adsorption on Na-ZSM-5 zeolites: An FTIR investigation

CO was adsorbed at 77 K on two Na-ZSM-5 zeolites which had Si/Al = 14 and Si/Al = 35, respectively. IR spectra in the OH-stretching region showed absorption bands at 3747 and 3673 cm −1 assigned, respectively, to terminal silanols and to hydroxyls located on extraframework aluminium species. These O...

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Veröffentlicht in:	Journal of catalysis 1992-09, Vol.137 (1), p.179-185
Hauptverfasser:	Bordiga, Silvia, Escalona Platero, Estrella, Otero Areán, Carlos, Lamberti, Carlo, Zecchina, Adriano
Format:	Artikel
Sprache:	eng
Schlagworte:	02 PETROLEUM 020400 - Petroleum- Processing 10 SYNTHETIC FUELS 100200 - Synthetic Fuels- Production- (1990-) 400201 - Chemical & Physicochemical Properties ABSORPTION SPECTROSCOPY ADSORPTION ALCOHOLS ALKANES ALKENES BROENSTED ACIDS CARBON COMPOUNDS CARBON MONOXIDE CARBON OXIDES CATALYSTS CATALYTIC CRACKING CHALCOGENIDES CHEMICAL REACTIONS Chemistry CRACKING DECOMPOSITION ELECTROMAGNETIC RADIATION Exact sciences and technology FOURIER TRANSFORMATION FUELS GASOLINE General and physical chemistry HYDROCARBONS HYDROGEN COMPOUNDS HYDROXY COMPOUNDS HYDROXYL RADICALS INFRARED RADIATION INFRARED SPECTRA INORGANIC ACIDS INORGANIC ION EXCHANGERS INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY INTEGRAL TRANSFORMATIONS ION EXCHANGE MATERIALS LEWIS ACIDS LIQUID FUELS MATERIALS METHANOL MINERALS ORGANIC COMPOUNDS OXIDES OXYGEN COMPOUNDS PETROLEUM PRODUCTS POLYMERIZATION PYROLYSIS RADIATIONS RADICALS SILICATE MINERALS Solid-gas interface SORPTION SORPTIVE PROPERTIES SPECTRA SPECTROSCOPY Surface physical chemistry SURFACE PROPERTIES THERMOCHEMICAL PROCESSES TRANSFORMATIONS ZEOLITES
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