4.8 Article

Enhancing Proton Conduction in 2D Co-La Coordination Frameworks by Solid-State Phase Transition

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 26, Pages 9292-9295

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja505916c

Keywords

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Funding

  1. National Basic Research Program of China [2010CB923402, 2013CB922102]
  2. NSF of China [11079021, 21101092]
  3. Grants-in-Aid for Scientific Research [25810039, 26248019] Funding Source: KAKEN

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We report that a new 2D 3d-4f phosphonate [(CoLaIII)-La-III(notpH)(H2O)(6)]ClO4 center dot 5H(2)O (CoLa-II) can undergo a phase transition above 45 degrees C and 93% relative humidity, resulting in [H3O][CoLa(notp)-(H2O)(4)]ClO4 center dot 3H(2)O (CoLa-III). The transition is accompanied by the release of the proton from intralayer to interlayer, and thus the proton conductivity of the material is increased by 1 order of magnitude.

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