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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

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. 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http:/dx.doi.org/10.1021/cm0101430DOIArticle
http://pubs.acs.org/doi/abs/10.1021%2Fcm0101430PublisherArticle
ORCID:
AuthorORCID
Haile, Sossina M.0000-0002-5293-6252
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.
Funders:
Funding AgencyGrant Number
NSFUNSPECIFIED
Irvine Foundation UNSPECIFIED
Subject Keywords:paraelectric phase crystal-structure conductivityPARAELECTRIC PHASE CRYSTAL-STRUCTURE CONDUCTIVITY
Issue or Number:9
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:03 Oct 2019 06:01

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