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Complex–Surfactant‐Assisted Hydrothermal Synthesis and Properties of Hierarchical Worm‐Like Cobalt Sulfide Microtubes Assembled by Hexagonal Nanoplates
Author(s) -
Liu Bo,
Wei Shuang,
Xing Yan,
Liu Dan,
Shi Zhan,
Liu Xianchun,
Sun Xiujuan,
Hou Suying,
Su Zhongmin
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200903384
Subject(s) - transmission electron microscopy , hydrothermal circulation , materials science , chemical engineering , scanning electron microscope , x ray photoelectron spectroscopy , hydrothermal synthesis , pulmonary surfactant , bromide , nanotechnology , cobalt , ethylenediamine , cobalt sulfide , crystallography , electrochemistry , chemistry , inorganic chemistry , composite material , metallurgy , electrode , engineering
The preparation of exquisite hierarchical worm‐like Co 1− x S ( x =0.75) microtubes by a one‐pot complex–surfactant‐assisted hydrothermal method is successfully achieved for the first time. The hierarchical structures of the microtube wall are assembled from numerous interleaving hexagonal nanoplates. X‐ray diffraction, X‐ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and high‐resolution transmission electron microscopy were used to characterize the samples. The experimental results indicate that the “soft template” surfactant cetyltrimethylammonium bromide and the chelating ethylenediamine both play important roles for the formation of hierarchical Co 1− x S microtubes. A possible formation mechanism for the growth processes is proposed. Additionally, the electrochemical and magnetic properties of Co 1− x S microtubes were systematically studied.