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Title: Pressure-induced amorphization of a dense coordination polymer and its impact on proton conductivity
Authors: Umeyama, Daiki
Horike, Satoshi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-8530-6364 (unconfirmed)
Tassel, Cedric  kyouindb  KAKEN_id
Kageyama, Hiroshi
Higo, Yuji
Hagi, Keisuke
Ogiwara, Naoki
Kitagawa, Susumu  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-6956-9543 (unconfirmed)
Author's alias: 堀毛, 悟史
Issue Date: 1-Dec-2014
Publisher: American Institute of Physics Inc.
Journal title: APL Materials
Volume: 2
Issue: 12
Start page: 124401
Abstract: The proton conductivity of a dense coordination polymer (CP) was investigated under high-pressure conditions. Impedance measurements under high pressures revealed that the proton conductivity of the CP decreased more than 1000-fold at pressures of 3–7 GPa and that the activation energy for proton conduction almost doubled compared with that at ambient pressure. A synchrotron X-ray study under high pressure identified the amorphization process of the CP during compression, which rationally explains the decrease in conductivity and increase in activation energy. This phenomenon is categorized as reversible pressure-induced amorphization of a dense CP and is regarded as a demonstration of the coupling of the mechanical and electrical properties of a CP.
Rights: © 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
URI: http://hdl.handle.net/2433/191223
DOI(Published Version): 10.1063/1.4898806
Appears in Collections:Journal Articles

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