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Reticular Nickel Microwires with Assembled Nanostructures: Synthesis, Magnetism and Catalysis for the Growth of Carbon Nanotubes
Author(s) -
Ni Xiaomin,
Zhao Qingbiao,
Zhang Yongfeng,
Zheng Huagui
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200600842
Subject(s) - chemistry , nickel , catalysis , triethanolamine , ethylenediamine , carbon nanotube , nanotechnology , chemical engineering , magnetism , diethanolamine , hydrazine (antidepressant) , amination , inorganic chemistry , organic chemistry , materials science , analytical chemistry (journal) , physics , chromatography , quantum mechanics , engineering
Reticular nickel microwires assembled from different‐shaped building blocks are fabricated by a simple, one‐pot method in the absence of any surfactants or external magnetic field. The synthetic process involves the chemical reduction of a nickel complex with hydrazine under controlled reaction conditions. Our strategy focuses on the modulation of the reaction rate to control the shape of the subunits and their spontaneous assembly behavior, which avoids the need for surfactants or an external force. The nickel wires can be reproducibly created with the assistance of various complexants, such as citrate, tartrate, lactate, ethylenediamine, triethanolamine and diethanolamine, which proves the generality of this method. These nickel wires show variable magnetic properties and catalysis for the growth of carbon nanotubes in pyrolyzing acetone due to the nature of their microstructures. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)