The silica gel containing decatungstodivanadogermanic heteropoly acid was prepared by means of the sol-gel method. Infrared spectrum and XRD pattern revealed that the Keggin structure characteristic of GeW10V2O406- anion was present in the silica gel skeleton. The regularity of the change of the characteristic peaks in the infrared spectrum was investigated. The'silica gel exhibited considerably high-proton conductivity. The proton conductivity of the gel containing 80 wt.% decatungstodivanadogermanic acid is 5.37 x 10(-2) S cm(-1) at room temperature (18 degrees C). (c) 2006 Elsevier B.V. All rights reserved.
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