Abstract

Using the example of copper oxide nanopowders, the correlation between the morphology and particle size of the initial and final materials is investigated by means of X-ray fluorescence, X-ray phase analysis, electron microscopy, and thermogravimetric analysis. From 10% salt solutions, an oxygen-containing copper sediment which was a mixture of copper hydroxonitrate Cu₂(OH)₃NO₃ and copper oxide CuO was synthesized, from which powders with various morphologies were formed by various types of treatment. The reactions occurring during thermal decomposition of the obtained sediment were established, as well as the scheme of reducing Cu₂(OH)₃NO₃ to metal copper. The phase composition, morphology, and particle size of the deposited material and metal product were studied. A scheme of formation of metal copper nanoparticles from copper hydroxonitrate is proposed.

中文翻译：

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纳米铜粉初始和最终材料特性之间的相关性

摘要

以氧化铜纳米粉为例，通过X射线荧光，X射线相分析，电子显微镜和热重分析研究了初始和最终材料的形态与粒度之间的相关性。由10％的盐溶液合成了含氧铜沉淀物，该沉淀物是氢氧合铜酸铜Cu ₂（OH）₃ NO ₃和氧化铜CuO的混合物，并通过各种处理形成各种形态的粉末。建立了所得沉积物热分解过程中发生的反应，以及还原Cu ₂（OH）₃ NO _3的方案金属铜。研究了沉积材料和金属产品的相组成，形态和粒径。提出了由氢氧合铜形成金属铜纳米颗粒的方案。