%0 Journal Article %T Synthesis, Characterization and Catalytic Performance of H3 SiW12 O40 /SiO2 Prepared by Sol-Gel Technique %A W. N. R. W. Isahak %A M. Ismail %A N. M. Nordin %A J. M. Jahim %J Journal of Nanotechnology %D 2011 %I Hindawi Publishing Corporation %R 10.1155/2011/507692 %U http://dx.doi.org/10.1155/2011/507692