Controlled synthesis and morphological investigation of self-assembled CuO nanostructures
Controlled synthesis and morphological investigation of self-assembled CuO nanostructures
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DOI：
10.1016/j.matlet.2014.01.130
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发表时间：
2014-04-15
影响因子：
3
通讯作者：
Hayakawa, Y.
中科院分区：
文献类型：
--
作者：
Harish, S.;Navaneethan, M.;Hayakawa, Y.
采用化学方法合成了从片状束到纳米纤维等不同形态的氧化铜纳米结构。以吡啶为形态导向剂，考察了其浓度的影响。在没有吡啶的情况下，得到了成束的纳米片。不同浓度吡啶的加入对其形貌有深远的影响。吡啶的高分散能力导致了颗粒的分离和晶粒尺寸的减小。随着配体浓度的增加，晶粒尺寸减小。结构研究揭示了单斜CuO的形成。利用电子显微镜技术解释了这些纳米结构形成的可能机制。所制得的氧化铜纳米结构具有高结晶性和优异的功能特性。(C) 2014 Elsevier B.V.版权所有
Copper oxide nanostructures with different morphologies from bundle of sheets to nanofibres were synthesized by a chemical method. Pyridine was used as a morphology directing agent and the role of its concentration was investigated. In the absence of pyridine, bundles of nanosheets were obtained. Addition of pyridine in various concentrations had a profound effect on the morphology. The high dispersion ability of pyridine led to the separation of particles and decrease in grain size. The grain size decreased with increase in ligand concentration. Structural studies revealed the formation of monoclinic CuO. The possible mechanisms for the formation of these nanostructures were explained with the help of electron microscopic techniques. The obtained CuO nanostructures had high crystalline nature with fascinating functional properties. (C) 2014 Elsevier B.V. All rights reserved.