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Selective and Controlled Synthesis of α- and β-Cobalt Hydroxides in Highly Developed Hexagonal Platelets
Abstract
We report on the controlled synthesis of single-crystal platelets of alpha- and beta-Co(OH)2 via homogeneous precipitation using hexamethylenetetramine as a hydrolysis agent. The alpha- and beta-Co(OH)2 hexagonal platelets of several micrometers in width and about 15 nm in thickness were reproducibly yielded in rather dilute CoCl2 solutions in the presence and absence of NaCl at 90 degrees C, respectively. The phase and size control of the products were achieved by varying both CoCl2 and NaCl concentrations. Polarized optical microscope observations revealed clear liquid crystallinity of colloidal suspensions of these high aspect-ratio platelets. The as-prepared alpha-Co(OH)2 containing interlayer chloride ions was intercalated with various inorganic or organic anions, keeping its high crystallinity and hexagonal platelike morphology.
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Cited by
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Zhong, J.-H., Wang, A.-L., Li, G.-R., Wang, J.-W., Ou, Y.-N., & Tong, Y.-X. (2012) · Journal of Materials Chemistry · doi:10.1039/c2jm15863a · Cited by 510
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Metadata
- Authors
- Liu, Z., Ma, R., Osada, M., Takada, K., & Sasaki, T.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-09-17
- Volume
- 127
- Issue
- 40
- Pages
- 13869-13874
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1995706554
- Cited by
- 726
- References
- 0
- FWCI
- 6.25
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, Z., Ma, R., Osada, M., Takada, K., & Sasaki, T. (2005). Selective and Controlled Synthesis of α- and β-Cobalt Hydroxides in Highly Developed Hexagonal Platelets. Journal of the American Chemical Society. https://doi.org/10.1021/ja0523338
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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