Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 16, Issue 22, Pages 6625-6631Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200903384
Keywords
cobalt; electrochemistry; magnetic properties; microtubes; surfactants
Categories
Funding
- Jilin Province [20090518]
- Department of Science and Technology of Jilin Province [20082103]
- NENU [NENU-STC07004]
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of Jilin University
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The preparation of exquisite hierarchical worm-like Co1-xS (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 Co1-xS microtubes. A possible formation mechanism for the growth processes is proposed. Additionally, the electrochemical and magnetic properties of Co1-xS microtubes were systematically studied.
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