十钨钼钒锗杂多酸复合二氧化硅凝胶的制备与质子导电性

Preparation and proton conductivity of silica gels composited with decatungstomolybdovanadogermanic heteropoly acid

通过溶胶-凝胶法制备了掺杂十钨钼钒锗杂多酸的二氧化硅凝胶,红外光谱证明了凝胶中有Keggin[GeW10MoVO40]5-结构的阴离子存在．在室温(18℃)下,掺十钨钼钒锗酸71％的凝胶的质子电导率为1．97×10-3S·cm-1,它们是好的质子导体．

The silica gels composited with decatungstomolybdovanadogermanic heteropoly acid were prepared. IR spectra revealed that the Keggin structure characteristic of the [GeW10MoVO40]^5- anion was present in silica gels. At room temperature （18 ℃）, the conductivity of the samples of different HPA content increased from 4. 68×10^-4 to 1.97×10^-3 S·cm^-1. The results indicated that they are excellent high-oroton conductors.