Reversible transformation from amorphouse Na3Fe3(SO4)2(OH)6 to crystallized NaFe3(SO4)2(OH)6 Jarosite-type hydroxysulfate

被引：20

作者：

Gnanavel, M. ^{[1
]}

Lebedev, O. I. ^{[1
]}

Bazin, P. ^{[2
]}

Raveau, B. ^{[1
]}

Pralong, V. ^{[1
]}

机构：

[1] Univ Caen, ENSICAEN, Lab Cristallog & Sci Mat CRISMAT, F-14050 Caen, France

[2] Univ Caen, CNRS, ENSICAEN, Lab Catalyse & Spectrochim, F-14050 Caen, France

来源：

SOLID STATE IONICS | 2015年 / 278卷

关键词：

Sodium iron hydroxysulfate; Na ion batteries; Cathode; NaFe3(SO4)(2)(OH)(6); NA-ION BATTERIES; LI-ION; ELECTRODE MATERIALS; SODIUM; SULFATE; LITHIUM; ELECTROCHEMISTRY; FE; CHEMISTRY; INSERTION;

D O I：

10.1016/j.ssi.2015.05.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An amorphous iron hydroxysulfate Na3Fe3(SO4)(2)(OH)(6) has been prepared for the first time from sodium insertion into the crystalline phase NaFe3(SO4)(2)(OH)(6). We show that this transformation is completely reversible, leading back to the well crystallized hexagonal phase on oxidation. This material could then be proposed as positive electrode material for Na ion batteries with a reversible capacity of 120 mAh/g at 2.72 V vs Na+/Na. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：38 / 42

页数：5

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