中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Na-3[Ti2P2O10F]: A new oxyfluorinated titanium phosphate with an ionic conductive property

文献类型:期刊论文

作者Yang, Sihai; Li, Guobao; You, Liping; Tao, Julian; Loong, Chun-K.; Tian, Shujian; Liao, Fuhui; Lin, Jianhua
刊名CHEMISTRY OF MATERIALS
出版日期2007-02-20
卷号19期号:4页码:942-947
ISSN号0897-4756
DOI10.1021/cm062513w
英文摘要Titanium phosphate, Na-3[Ti2P2O10F]center dot xH(2)O (1), has been synthesized under hydrothermal conditions and structurally characterized using powder X-ray diffraction, neutron diffraction, and selected area electron diffraction (SAED). 1 crystallizes in the tetragonal space group I4/mmm with a = 6.4207(1) A and c = 10.6762(2) A and can be described by the stacking of a square-net sheet consisting of alternative linkage of TiFO5 octahedra and PO4 tetrahedra. The TiFO5 octahedron is highly distorted, with a short "titanyl" Ti-O bond and a long Ti-F bond. The "titanyl" oxygen is almost doubly bonded to Ti; the square-net sheets are linked only by sharing common F atoms, which lead to a rather opened framework containing 2D channels in the ab plane. The counter cations Na+ and water molecules reside in the channels. At high temperature, the adsorbed water molecules escape from the channels, leading to an anhydrous phase Na-3[Ti2P2O10F] (2) with exactly the same structural framework as that of 1. 2 is stable at high temperature in an Ar atmosphere, but decomposes to other known titanium phosphates and oxide at about 650 degrees C in air. The Na ions in the compound are exchangeable. In addition, 2 exhibits a Na conductivity comparable to that of the NASICON type titanium phosphates (1.0 x 10(-4) Omega(-1) cm(-1) at 200 degrees C).
语种英语
WOS记录号WOS:000244161800043
出版者AMER CHEMICAL SOC
源URL[http://ir.iccas.ac.cn/handle/121111/60689]  
专题中国科学院化学研究所
通讯作者Li, Guobao
作者单位1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
2.Peking Univ, Eletron Microscope Lab, Beijing 100871, Peoples R China
3.Argonne Natl Lab, Div Intense Pulsed Neutron Source, Argonne, IL 60439 USA
推荐引用方式
GB/T 7714
Yang, Sihai,Li, Guobao,You, Liping,et al. Na-3[Ti2P2O10F]: A new oxyfluorinated titanium phosphate with an ionic conductive property[J]. CHEMISTRY OF MATERIALS,2007,19(4):942-947.
APA Yang, Sihai.,Li, Guobao.,You, Liping.,Tao, Julian.,Loong, Chun-K..,...&Lin, Jianhua.(2007).Na-3[Ti2P2O10F]: A new oxyfluorinated titanium phosphate with an ionic conductive property.CHEMISTRY OF MATERIALS,19(4),942-947.
MLA Yang, Sihai,et al."Na-3[Ti2P2O10F]: A new oxyfluorinated titanium phosphate with an ionic conductive property".CHEMISTRY OF MATERIALS 19.4(2007):942-947.

入库方式: OAI收割

来源:化学研究所

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