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Cited by 199

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Arresting Butterfly-Like Intermediate Nanocrystals of β-Co(OH)2 via Ethylenediamine-Mediated Synthesis

Sampanthar, Jeyagowry T., Zeng, Hua Chun·2002·Journal of the American Chemical Society

Abstract

A synthesis of beta-Co(OH)2 nanocrystalline materials has been investigated with the assistance of chelating agent ethylenediamine. By controlling precipitation processes, various forms of beta-Co(OH)2 crystallites can be prepared at different stages. The crystallite morphologies include two-dimensional hexagonal sheet platelets, one-dimensional nanorods, and butterfly-like nanocrystallite intermediates. In particular, a triangular construction unit for beta-Co(OH)2 crystallites has been revealed with the ethylenediamine mediation in the synthesis. With the successful arrest of these butterfly-like intermediate crystallites, especially of linearly aligned "butterflies", the formation mechanism of one-dimensional nanorods or nanoribbons has been experimentally explained. The chemical composition of solution precursors and resultant beta-Co(OH)2 crystallites has been analyzed with UV-vis/FTIR/CHN /XRD/TGA/TEM/SAED methods. The relationships among various observed crystallite morphologies have also been discussed on the basis of the experimental findings.

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Metadata

Authors
Sampanthar, J. T., & Zeng, H. C.
Venue
Journal of the American Chemical Society
Published
2002-05-17
Volume
124
Issue
23
Pages
6668-6675
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2021531082
Cited by
199
References
1
FWCI
7.95
Type
journal article
Language
en
Open access
closed

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