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首页> 外文期刊>Journal of nano research >Synthesis of Nano CuO by Polymeric Precursor Method and its Low Temperature Reduction to Stable Copper Nanoparticles
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Synthesis of Nano CuO by Polymeric Precursor Method and its Low Temperature Reduction to Stable Copper Nanoparticles

机译：高分子前驱体法合成纳米CuO及其低温还原成稳定的铜纳米粒子

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摘要

CuO nanoparticles showing different morphologies were prepared by polymeric precursor method using three different copper sources: basic copper carbonate, copper nitrate and copper hydroxide. The decomposition temperature of the precursors varies from 200° C to 400° C. The effect of the concentration of the polymeric additive was studied. The CuO nanopowder was reduced to metallic copper at low temperature using hydrazine hydrate as a reducing agent. The oxide was treated with the reducing agent in two forms: (1) as dispersion in 0.1% PVA (dispersion method) (2) as slurry with 0.1% PVA applied on a glass plate (plate method). The maroon copper metal nanofluid achieved in dispersion method was stable for six months and the copper nanopowder obtained from the plate method showed stability for more than six months. The precursor, CuO and Cu nanomaterials were characterized by powder XRD, FT-IR, TGA, SEM and TEM techniques.
机译：使用三种不同的铜源：碱性碳酸铜，硝酸铜和氢氧化铜，通过聚合物前驱体方法制备了表现出不同形态的CuO纳米粒子。前体的分解温度在200℃至400℃之间变化。研究了聚合物添加剂的浓度的影响。使用水合肼作为还原剂，将CuO纳米粉在低温下还原为金属铜。用还原剂以两种形式处理氧化物：（1）作为在0.1％PVA中的分散体（分散法）（2）作为在玻璃板上施加0.1％PVA的浆液（平板法）。分散法制得的栗色铜金属纳米流体稳定了六个月，而平板法制得的铜纳米粉表现出了六个月以上的稳定性。通过粉末XRD，FT-IR，TGA，SEM和TEM技术对前驱体CuO和Cu纳米材料进行了表征。

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