Iron Sulfide (FeS) Nanotubes Using Sulfurization of Hematite Nanowires

被引：77
作者：
Cummins, Dustin R. [1 ,2 ]
Russell, Harry B. [1 ,2 ]
Jasinski, Jacek B. [1 ,2 ]
Menon, Madhu [3 ]
Sunkara, Mahendra K. [1 ,2 ]
机构：
[1] Univ Louisville, Dept Chem Engn, Louisville, KY 40292 USA
[2] Univ Louisville, Conn Ctr Renewable Energy Res, Louisville, KY 40292 USA
[3] Univ Kentucky, Ctr Computat Sci, Lexington, KY 40506 USA
来源：
NANO LETTERS | 2013年 / 13卷 / 06期
基金：
美国国家科学基金会;
关键词：
FeS; troilite; nanotubes; Kirkendall effect; optical properties; sulfurization; hematite nanowire arrays; CHEMICAL-VAPOR-DEPOSITION; SELF-DIFFUSION; NICKEL-OXIDE; PYRITE; KIRKENDALL; FILMS; BATTERY; ARRAYS; LAYER;
D O I：
10.1021/nl400325s
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report the phase transformation of hematite (alpha-Fe2O3) single crystal nanowires to crystalline FeS nanotubes using sulfurization with H2S gas at relatively low temperatures. Characterization indicates that phase pure hexagonal FeS nanotubes were formed. Time-series sulfurization experiments suggest epitaxial growth of FeS as a shell layer on hematite. This is the first report of hollow, crystalline FeS nanotubes with NiAs structure and also on the Kirkendall effect in solid-gas reactions with nanowires involving sulfurization.
引用
收藏
页码：2423 / 2430
页数：8
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