Chisholm, Calum R. I. and Cowan, Lisa A. and Haile, Sossina M. (2001) Synthesis, Structure, and Properties of Compounds in the NaHSO_4−CsHSO_4 System. 2. The Absence of Superprotonic Transitions in Cs_2Na(HSO_4)_3 and CsNa_2(HSO_4_)3. Chemistry of Materials, 13 (9). pp. 2909-2912. ISSN 0897-4756. doi:10.1021/cm0101430. https://resolver.caltech.edu/CaltechAUTHORS:20131125-162530597
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Abstract
Exploratory synthesis in the NaHSO₄−CsHSO₄ system, aimed at discovering novel proton-conducting solids, yielded the new compounds CsNa₂(HSO₄)₃ and Cs₂Na(HSO₄)₃. Thermal analysis demonstrated the absence of phase transitions for both compounds prior to melting. The conductivities of the two compounds vary monotonically with temperature, in a non-Arrhenius manner, from ambient to the respective melt temperatures of 398 and 413 K. At 363 K the conductivities are on the order of 10⁻⁸ Ω¹⁻cm⁻¹, which is comparable to that of other alkali acid sulfates. The absence of transitions to disordered, high conductivity phases, as is observed in compounds such as CsHSO₄, is explained in terms of the stiffness of the Na−O bonds, which may serve to prevent rapid reorientation of SO₄ tetrahedral groups.
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Alternate Title: | Synthesis, Structure, and Properties of Compounds in the NaHSO4−CsHSO4 System. 2. The Absence of Superprotonic Transitions in Cs2Na(HSO4)3 and CsNa2(HSO4)3 | |||||||||
Additional Information: | Copyright © 2001 American Chemical Society. Received February 16, 2001. Revised Manuscript Received June 15, 2001. Publication Date (Web): August 21, 2001. CM0101430. This work was funded by the National Science Foundation and by the Irvine Foundation. | |||||||||
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Subject Keywords: | paraelectric phase crystal-structure conductivityPARAELECTRIC PHASE CRYSTAL-STRUCTURE CONDUCTIVITY | |||||||||
Issue or Number: | 9 | |||||||||
DOI: | 10.1021/cm0101430 | |||||||||
Record Number: | CaltechAUTHORS:20131125-162530597 | |||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20131125-162530597 | |||||||||
Official Citation: | Synthesis, Structure, and Properties of Compounds in the NaHSO4−CsHSO4 System. 2. The Absence of Superprotonic Transitions in Cs2Na(HSO4)3 and CsNa2(HSO4)3. Calum R. I. Chisholm,Lisa A. Cowan, and, and Sossina M. Haile. Chemistry of Materials 2001 13 (9), 2909-2912. | |||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
ID Code: | 42706 | |||||||||
Collection: | CaltechAUTHORS | |||||||||
Deposited By: | Jonathan Gross | |||||||||
Deposited On: | 27 Nov 2013 18:50 | |||||||||
Last Modified: | 10 Nov 2021 16:27 |
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