-A A +A
Vanadium chloromethoxide was prepared by the methanolysis of VCl4. The addition of water with a H2O:vanadium molar ratio ranging between 0 and 16 changed the solution color from green to deep blue at a rate increasing with water concentration. UV−vis, Fourier transform infrared, Raman, and electron paramagnetic resonance spectroscopy investigations showed that VCl4 precursor is initially methanolyzed to (VO)Clx(OCH3)y (x + y = 4) monomers. Upon water addition, methoxo ligands undergo hydrolysis. The presence of chlorine ligands and of the vanadyl group explains the long-term stability of the solutions. V2O5 thin films and powders were prepared, respectively, by spin-coating onto silicon substrates and drying of the solutions, followed by heat-treatments at temperatures up to 500 °C. Films and powder precursors were characterized by X-ray diffraction, FTIR, Raman, UV−vis, and EPR spectroscopy …
American Chemical Society
Publication date: 
28 Apr 2009

Mauro Epifani, Teresa Andreu, Carlos R Magana, Jordi Arbiol, Pietro Siciliano, Massimiliano D’Arienzo, Roberto Scotti, Franca Morazzoni, Joan R Morante

Biblio References: 
Volume: 21 Issue: 8 Pages: 1618-1626
Chemistry of materials