Metal−Oxygen Cluster Compounds (Heteropoly Oxometalates) of 1B and 3B Monovalent Cations and Their Micropore Structure

Silver and thallium, representatives from the periodic table's groups 1B and 3B, respectively, were employed as cations to synthesize stoichiometric and nonstoichiometric salts of 12-tungstophosphoric, 12-molybdophosphoric, and 12-tungstosilicic acids. All the solids, except silver 12-molybdoph...

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Bibliographic Details
Published in:Langmuir 1996-07, Vol.12 (15), p.3733-3739
Main Authors: Parent, M. A, Moffat, J. B
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Porous materials
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Summary:Silver and thallium, representatives from the periodic table's groups 1B and 3B, respectively, were employed as cations to synthesize stoichiometric and nonstoichiometric salts of 12-tungstophosphoric, 12-molybdophosphoric, and 12-tungstosilicic acids. All the solids, except silver 12-molybdophosphate, have high surface areas and microporous structures, as shown from the analysis of nitrogen adsorption−desorption isotherms obtained at 77 °K. Powder X-ray diffraction, temperature-programmed desorption, infrared spectroscopy, and 1H MAS NMR spectroscopy are employed to characterize the synthesized materials.
ISSN:0743-7463
1520-5827
DOI:10.1021/la9601667