Glass Formation of a Coordination Polymer Crystal for Enhanced Proton Conductivity and Material Flexibility

Wenqian Chen, Satoshi Horike, Daiki Umeyama, Naoki Ogiwara, Tomoya Itakura, Cédric Tassel, Yoshihiro Goto, Hiroshi Kageyama, Susumu Kitagawa

研究成果: Article査読

87 被引用数 (Scopus)

抄録

The glassy state of a two-dimensional (2D) Cd2+ coordination polymer crystal was prepared by a solvent-free mechanical milling process. The glassy state retains the 2D structure of the crystalline material, albeit with significant distortion, as characterized by synchrotron X-ray analyses and solid-state multinuclear NMR spectroscopy. It transforms to its original crystal structure upon heating. Thus, reversible crystal-to-glass transformation is possible using our new processes. The glass state displays superior properties compared to the crystalline state; specifically, it shows anhydrous proton conductivity and a dielectric constant two orders of magnitude greater than the crystalline material. It also shows material flexibility and transparency. Phase transitions: The glassy state of a two-dimensional (2D) Cd2+ coordination polymer crystal was prepared by a solvent-free mechanical milling process. The coordination polymer shows an increased proton conductivity and an increased dielectric constant in the glassy state (see picture).

本文言語English
ページ(範囲)5195-5200
ページ数6
ジャーナルAngewandte Chemie - International Edition
55
17
DOI
出版ステータスPublished - 2016 4月 18

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)

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