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Single‐Crystal Dendritic Micro‐Pines of Magnetic α‐Fe 2 O 3 : Large‐Scale Synthesis, Formation Mechanism, and Properties
Author(s) -
Cao Minhua,
Liu Tianfu,
Gao Song,
Sun Genban,
Wu Xinglong,
Hu Changwen,
Wang Zhong Lin
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200500448
Subject(s) - hematite , fractal , hydrothermal circulation , materials science , crystallography , hydrothermal synthesis , crystal (programming language) , crystal growth , single crystal , chemical physics , mineralogy , chemistry , geology , metallurgy , mathematics , computer science , paleontology , mathematical analysis , programming language
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.