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2005
Electric properties
D 8000
Cation Mobility and Kinetics of Ion Exchange in Zirconium Hydrogen Monothiophosphate Hydrate, Zr(HPO3S)2�5H2O. ? The ionic conductivity of the title com01- 011 pound
is measured by impedance spectroscopy. The proton conductivity is determined
to be 3�-5 S/cm at 298 K and decreases with increasing temperature due to a dehydration process. Above 450 K, the conductivity is likely governed by proton transport in
the anhydrous phase Zr(HPO3S) 2. The activation energies of proton conductivity are
measured to be 18 kJ/mol for Zr(HPO3S) 2�5H2O and 60 kJ/mol for the dehydrated
phase. The kinetics of ion exchange is studied by potentiometric titration for several
ion pairs (H+/Na+, H+/Zn2+ , and Na+/Zn2+) in Zr(HPO3S) 2�5H2O. ? (STENINA, I.
A.; ALIEV, A. D.; DORHOUT*, P. K.; YAROSLAVTSEV, A. B.; Inorg. Chem. 43
(2004) 22, 7141-7145; Dep. Chem., Colo. State Univ., Fort Collins, CO 80523, USA;
Eng.) ? Schramke
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