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首页> 外文期刊>Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan >Investigation of synthesized nanosized copper by polyol technique with graphite powder
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Investigation of synthesized nanosized copper by polyol technique with graphite powder

机译：多元醇技术与石墨粉合成纳米铜的研究

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摘要

Polyol method is a type of soft chemical method employed to prepare stable fine transition metals (TMs), without using any sophisticated instruments in a normal clean room environment. In the present work, pure nano-sized copper powder was prepared by reduction of copper (II) chloride dehydrate with sodium hydroxide in the glycerol environment at reaction temperature of 160 degrees C for 17 min. The Field Emission Scanning Electron Microscopy (FESEM) observation of synthesized copper powder showed the particle dimensions varying from 70 to 400 nm. The Energy Dispersive Spectroscopy (EDS) and X-ray Diffraction (XRD) analysis supported the 98.46% purity of synthesized copper powder. The Rietveld analysis confirmed the cubic structure for synthesized copper with cell parameter: a = 3.63 angstrom. Whereas the Ultraviolet-Visible Spectroscopy (UV-Vis) revealed damping of surface plasmon resonance due to inactive chloride monolayer at the particle surface. This copper powder heat-treated in carbon environment showed the presence of copper oxalate phase using XRD analysis, noted from the peaks at 36.2 degrees and 46.4 degrees for (120) and (200) planes, respectively; and Fourier Transform Infra Red (FTIR) Spectroscopy backed the presence of copper oxide (Cu2O). (C) 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
机译：多元醇法是一种软化学方法，用于制备稳定的精细过渡金属（TM），而在正常的洁净室环境中无需使用任何复杂的仪器。在本工作中，通过在甘油环境中用氢氧化钠在160℃的反应温度下将脱水氯化铜（II）脱水17分钟来制备纯纳米级铜粉。合成铜粉的场发射扫描电子显微镜（FESEM）观察显示，粒径在70至400 nm之间变化。能量分散光谱（EDS）和X射线衍射（XRD）分析支持合成铜粉的纯度为98.46％。 Rietveld分析证实了单元参数为a = 3.63埃的合成铜的立方结构。而紫外可见光谱（UV-Vis）显示由于粒子表面的非活性氯化物单层，表面等离振子共振受到抑制。用XRD分析，在碳环境下热处理过的铜粉显示出草酸铜相的存在，分别从（120）和（200）面在36.2度和46.4度的峰可见。傅立叶变换红外（FTIR）光谱支持氧化铜（Cu2O）的存在。 （C）2016日本粉末技术学会。由Elsevier B.V.和日本粉末技术学会出版。版权所有。

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