Investigation of the Synthesis of Zeolitic Vanadotungstate and its Use in the Separation of Propylene/Propane at High Temperature and Humidity.

Synthetic conditions for the zeolitic octahedral metal oxide based on vanadotungstate are studied. The temperature, time, acidity, / ratio, cation species, and concentration affect the resulting materials. The study shows that mixing tungstate and VO in an aqueous solution generates cubane units ([WO]) at room temperature.

Assembly of ϵ-Keggin Polyoxometalate from Molecular Crystal to Zeolitic Octahedral Metal Oxide.

Zeolitic octahedral metal oxides are inorganic crystalline microporous materials with adsorption and redox properties. New ϵ-Keggin nickel molybdate-based zeolitic octahedral metal oxides have been synthesized. P NMR spectroscopy shows that reduction of Mo -based molybdates forms an ϵ-Keggin polyoxometalate that immediately transfers to the solid phase.