Synthesis and characterization of Fe-and Cu doped molybdovanadophosphoric acids and their application in catalytic oxidation

P. VILLABRILLE; G. ROMANELLI; L.M. GASSA; P. VÁZQUEZ; C. CÁCERES

APPLIED CATALYSIS A-GENERAL

Elsevier

Lugar: Amsterdam; Año: 2007 vol. 324 p. 69 - 76

0926-860X

Heteropolycompounds, where one molybdenum atom of molybdophosphoric acid (M12P) was substituted by one vanadium atom, H4PMo11VO40, were synthesized and doped with Cu+2 or Fe+3. The prepared molybdovanadophosphates were characterized by Fourier transform infrared spectroscopy, 31P nuclear magnetic resonance, Diffuse reflectance spectroscopy, X-ray diffraction, Thermal analysis, Potentiometric titration, and Cyclic voltammetry. The catalytic performance testing showed that the prepared materials have high catalytic activity for the room temperature conversion of 2,6-dimethylphenol to 2,6-dimethyl-1,4-benzoquinone using aqueous hydrogen peroxide as oxidant agent.