Oxyfluoride Chemistry of Layered Perovskite Compounds

被引：76

作者：

Tsujimoto, Yoshihiro ^{[1
]}

Yamaura, Kazunari ^{[2
,3
]}

Takayama-Muromachi, Eiji ^{[2
,3
]}

机构：

[1] Natl Inst Mat Sci, ICYS, Int Ctr Mat Nanoarchitechton WPI MANA, Tsukuba, Ibaraki 3050044, Japan

[2] NIMS, Superconducting Properties Unit, Tsukuba, Ibaraki 3050044, Japan

[3] Transformat Res Project Iron Pnictides TRIP, JST Japan Sci & Technol Agcy, Tsukuba, Ibaraki 3050044, Japan

来源：

APPLIED SCIENCES-BASEL | 2012年 / 2卷 / 01期

关键词：

oxyfluoride; layered perovskite; high-pressure synthesis; low-temperature fluorination; LOW-TEMPERATURE FLUORINATION; GIANT MAGNETORESISTANCE; POWDER DIFFRACTION; CRYSTAL-STRUCTURE; MANGANESE OXIDES; HIGH-PRESSURE; FLUORIDE; INSERTION; TRANSITION; SUPERCONDUCTIVITY;

D O I：

10.3390/app2010206

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we review recent progress and new challenges in the area of oxyfluoride perovskite, especially layered systems including Ruddlesden-Popper (RP), Dion-Jacobson (DJ) and Aurivillius (AV) type perovskite families. It is difficult to synthesize oxyfluoride perovskite using a conventional solid-state reaction because of the high chemical stability of the simple fluoride starting materials. Nevertheless, persistent efforts made by solid-state chemists have led to a major breakthrough in stabilizing such a mixed anion system. In particular, it is known that layered perovskite compounds exhibit a rich variety of O/F site occupation according to the synthesis used. We also present the synthetic strategies to further extend RP type perovskite compounds, with particular reference to newly synthesized oxyfluorides, Sr2CoO3F and Sr3Fe2O5+xF2-x (x similar to 0.44).

引用

页码：206 / 219

页数：14

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