Li2Na2TiP2O9: an ordered Na4TiP2O9-type crystal with ion-exchange properties

Meihong Duan; Rukang Li

doi:10.1039/C9CE01314H

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Li₂Na₂TiP₂O₉: an ordered Na₄TiP₂O₉-type crystal with ion-exchange properties†

Meihong Duan

^ab and Rukang Li

*^ab

Author affiliations

* Corresponding authors

^a Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
E-mail: rkli@mail.ipc.ac.cn

^b Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China

Abstract

A new open-framework polyphosphate, Li₂Na₂TiP₂O₉, has been obtained from a molten salt method. Li₂Na₂TiP₂O₉ is composed of a three-dimensional structural skeleton constructed by LiO₄ tetrahedra and (TiP₂O₉)_∞ chains. Directly related to the super-ionic conductor Na₄TiP₂O₉, Li₂Na₂TiP₂O₉ possesses ordered Na-occupation and empty channels, which could be attributed to the ion exchange properties of Li₂Na₂TiP₂O₉.

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Article information

DOI: https://doi.org/10.1039/C9CE01314H
Article type: Communication
Submitted: 20 Aug 2019
Accepted: 30 Sep 2019
First published: 01 Oct 2019

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CrystEngComm, 2019,21, 6514-6517

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Li₂Na₂TiP₂O₉: an ordered Na₄TiP₂O₉-type crystal with ion-exchange properties

M. Duan and R. Li, CrystEngComm, 2019, 21, 6514 DOI: 10.1039/C9CE01314H

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