Abstract
A new solid high-proton conductor, H7[Ga(H2O)P2W17O61]·18H2O, a substituted heteropoly acid with Dawson structure, has been synthesized by the degradation/ion-exchange/freezing method. The product was characterized by potentiometric titration, chemical analysis, IR, UV, XRD and TG-DTA. Complex impedance measurements show a high conductivity (5.44×10−3 S/cm at 50°C), with an activation energy for proton conduction of 36.04 kJ/mol. The mechanism of proton conduction is the Vehicle mechanism.
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Qian, X., He, Z., Wu, Q. et al. Synthesis and conductivity of substituted heteropoly acid with Dawson structure H7[Ga(H2O)P2W17O61]·18H2O. Chin. Sci. Bull. 56, 2327–2330 (2011). https://doi.org/10.1007/s11434-011-4445-8
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DOI: https://doi.org/10.1007/s11434-011-4445-8