Ammonia-Assisted Fabrication of Flowery Nanostructures of Metallic Nickel Assembled from Hexagonal Platelets

A simple one‐pot solution method was reported for the synthesis of metallic nickel nanostructures assembled from hexagonal nanoplatelets. The process involved the reduction of nickelous salt with hydrazine in ammonia solution, and the reaction proceeded without the use of surfactants or external mag...

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Bibliographic Details
Published in:European Journal of Inorganic Chemistry 2009-02, Vol.2009 (5), p.677-682
Main Authors: Ni, Xiaomin, Zheng, Huagui, Yang, Qing, Tang, Kaibin, Liao, Guangxuan
Format: Article
Language:English
Subjects:
Hydrothermal synthesis
Nanostructures
Nickel
Self-assembly
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Summary:A simple one‐pot solution method was reported for the synthesis of metallic nickel nanostructures assembled from hexagonal nanoplatelets. The process involved the reduction of nickelous salt with hydrazine in ammonia solution, and the reaction proceeded without the use of surfactants or external magnetic forces. By properly adjusting the experimental parameters, we realized the anisotropic growth of face‐centered‐cubic (fcc) nickel into hexagonal nanoplatelets and their simultaneous assembly into flowery architectures. The cooperative effects of the ammonia complexing agent, a proper reaction rate, inherent magnetic interactions, and assembly entropy were considered the key factors driving the formation of the special assembly nanostructures on the basis of a series of contrast experiments. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) Novel flowery nanostructures of face‐centered‐cubic nickel assembled from hexagonal platelets were fabricated through the one‐step reduction of nickel chloride with hydrazine in ammonia solution; no surfactant or external magnetic field was used.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.200800976