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2005
Electric properties
D 8000
Synthesis and Characterization of Amorphous Hydrated Alkali Thio-Hydroxo— Compounds of general formula MxGeSx(OH)4-x·yH2O (M: Na, K, Rb,
25- 010 germanates.
Cs; 1 ≤ x ≤ 4; 0 < y < 8) are synthesized from aqueous solutions containing stoichiometric amounts of MSH and GeO2 at about 75 °C. The samples are characterized by
powder XRD, IR, and Raman spectroscopy. Conductivity measurements using
low-pressure sealed compacted powder pellets reveal fast proton conductivities for all
the compounds. This unique class of mixed anion materials may hold potential as fast
proton conductors for use in the intermediate temperature range 100—300 °C. —
(POLING, S. A.; NELSON, C. R.; MARTIN*, S. W.; Chem. Mater. 17 (2005) 7,
1728-1735; Dep. Mater. Sci. Eng., Iowa State Univ., Ames, IA 50011, USA; Eng.) —
W. Pewestorf
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