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Synthesis and conductivity of substituted heteropoly acid with Dawson structure H[Ga(HO)PWO]ยท18HO.
- Source :
-
Chinese Science Bulletin . Sep2011, Vol. 56 Issue 22, p2327-2330. 4p. - Publication Year :
- 2011
-
Abstract
- A new solid high-proton conductor, H[Ga(HO)PWO]·18HO, 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 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10016538
- Volume :
- 56
- Issue :
- 22
- Database :
- Academic Search Index
- Journal :
- Chinese Science Bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 78112012
- Full Text :
- https://doi.org/10.1007/s11434-011-4445-8