Growth and characterization of Ni nano-micro structures in the presence of ethylenediamine

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Abstract

Ni nano-micro structures have been synthesized via a solution reduction route in the presence of ethylenediamine (EDA) under strong alkaline conditions. The phase composition, morphology, and microstructure of the resulting products are investigated by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The presence of EDA plays an important role in the formation of Ni nano-micro structures, and microflowers or microspheres assembled from nanosized horns can be produced by changing the amount of EDA. The size of Ni nano-micro structures is dependent on the NaOH concentration, and long chains assembled from Ni nano-micro structured microspheres can be obtained by reducing the amount of NaOH solution used. The role of both EDA and NaOH in the reduction of Ni (II) to Ni, as well as in the growth of Ni nano-micro structures, has been discussed, and a possible formation mechanism of these Ni nano-micro structures has been proposed based on the experimental results.

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Chen, L., Liu, H., Liu, L., Zheng, Y., Tang, H., & Liu, Z. (2018). Growth and characterization of Ni nano-micro structures in the presence of ethylenediamine. Crystals, 8(11). https://doi.org/10.3390/cryst8110397

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