Calorimetric and IR-spectroscopic study of adsorption of methanol on zeolite-like aluminophosphates

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Russian Chemical Bulletin

DOI:https://doi.org/10.1007/BF00707212· OSTI ID:223916

Doronina, L A; Izmailova, S G; Karentina, I V ^[1]

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1. I.V. Grebenshchikov Inst. of Silicate Chemistry, St. Petersburg (Russian Federation)

Electrostatic properties of zeolite-like aluminophosphates are intermediate between those of zeolites and zeolite-like silica modifications. The adsorption measurements and IR spectroscopic investigations of the framework vibrations demonstrate that the number of the adsorption complexes of CH{sub 3}OH with Al atoms increases in the following order: AlPO{sub 4}-5 < AlPO{sub 4}-17 << AlPO{sub 4}-18. The OH vibrations of methanol molecules in the first coordination sphere of the Al atoms are reflected in the IR spectra as an absorption band at 3200 cm{sup -1}, which is not observed for the adsorption of CH{sub 3}OH on zeolites.

• Sponsoring Organization: USDOE
• OSTI ID: 223916
• Journal Information: Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 10 Vol. 44; ISSN RCBUEY; ISSN 1066-5285
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION SPECTROSCOPY
ADSORPTION
ALUMINIUM PHOSPHATES
CALORIMETRY
METHANOL
SORPTIVE PROPERTIES
VIBRATIONAL STATES
ZEOLITES