High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performance

被引：96

作者：

Li, Guowei ^{[1
]}

Zhang, Baomin ^{[2
]}

Yu, Feng ^{[3
]}

Novakova, Alla A. ^{[4
]}

Krivenkov, Maxim S. ^{[4
]}

Kiseleva, Tatiana Y. ^{[4
]}

Chang, Liao ^{[5
]}

Rao, Jiancun ^{[6
]}

Polyakov, Alexey O. ^{[1
]}

Blake, Graeme R. ^{[1
]}

de Groot, Robert A. ^{[2
]}

Palstra, Thomas T. M. ^{[1
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands

[2] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

[3] ASTAR, Inst Chem & Engn Sci, Jurong Island 627833, Singapore

[4] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119899, Russia

[5] Univ Utrecht, Dept Earth Sci, NL-3584 CD Utrecht, Netherlands

[6] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2014年 / 26卷 / 20期

关键词：

FACILE SYNTHESIS; ANODE MATERIALS; LITHIUM; FE3O4; IRON; ARCHITECTURES; MICROSPHERES; NANOCRYSTALS; MOSSBAUER; SPINEL;

D O I：

10.1021/cm501493m

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：

High-purity Fe3S4 (greigite) microcrystals with octahedral shape were synthesized via a simple hydrothermal method using a surfactant. The as-prepared samples have the inverse spinel structure with high crystallinity. The saturation magnetization (M-s) reaches 3.74 mu(B) at 5 K and 3.51 mu(B) at room temperature, which is larger than all reported values thus far. Electrical transport measurements show metallic behavior with a resistivity 40 times lower than in an previous report, The potential use of greigite as an anode in lithium-ion batteries was investigated by cyclic voltammery and galvanostatic discharge-charge cycling On as-prepared samples. The discharge capacity was 1161 mAh/g in the first cycle and 563 mAh/g in the 100th cycle. This excellent electrochemical performance can be attributed to the high purity, crystallinity, and favorable morphology of the products.

引用

页码：5821 / 5829

页数：9