Single-crystal dendritic micro-pines of magnetic α-Fe2O3:: Large-scale synthesis, formation mechanism, and properties

被引:481
作者
Cao, MH
Liu, TF
Gao, S
Sun, GB
Wu, XL
Hu, CW [1 ]
Wang, ZL
机构
[1] NE Normal Univ, Inst Polyoxometalate Chem, Changchun 130024, Peoples R China
[2] Beijing Inst Technol, Inst Phys Chem, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, Dept Chem, Beijing 100081, Peoples R China
[4] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[5] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
关键词
fractals; hydrothermal synthesis; iron oxides; magnetic properties; nanostructures;
D O I
10.1002/anie.200500448
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Fractal hematite dendrites with structures resembling pine trees (see picture) were obtained by hydrothermal treatment of K 3[Fe(CN)6]. They are formed by a novel process in which fast growth along six crystallographically equivalent directions forms dendritic or snowflakelike single-crystal structures, which differs from the mechanisms reported for other fractal structures. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:4197 / 4201
页数:5
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