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Highly productive synthesis process of well dispersed Cu_2O and Cu/Cu_2O nanoparticles and its thermal characterization

机译:分散良好的Cu_2O和Cu / Cu_2O纳米粒子的高生产率合成工艺及其热表征

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摘要

The article reports a simple, economical and highly productive synthesis process of cuprous oxide (Cu_2O) and copper/cuprous oxide (Cu/Cu_2O) nanoparticles with an average size of below 30 nm. A hydrolysis of copper (Cu) particles (200 nm or even microsize) employing low energy ball milling in aqueous circumstance results a controlled synthesis of Cu_2O and cermets of Cu/Cu_2O nanoparticles. Ground particles are found both in nanobar and spherical shape with cluster nano-clouds into aqueous solution. X-ray diffraction patterns of the sample powder confirm Cu_2O nanoparticles and Cu/Cu_2O cermets synthesized by complete and incomplete oxidation of Cu particles, respectively. The process is accomplished at room temperature in presence of de-ionized (DI) water and controlled by changing milling period and ball sizes. Enhanced thermal conductivity of Cu_2O-water and Cu/Cu_2O-water nanofluids are recorded and compared with non-ground Cu-water nanofluids.
机译:该文章报道了一种平均粒径小于30 nm的氧化亚铜(Cu_2O)和铜/氧化亚铜(Cu / Cu_2O)纳米粒子的简单,经济且高产的合成方法。在水环境中使用低能球磨对铜(Cu)颗粒(200 nm甚至微米尺寸)进行水解,可控制地合成Cu_2O和金属陶瓷的Cu / Cu_2O纳米颗粒。研磨后的颗粒呈纳米棒状和球形,簇状纳米云团进入水溶液。样品粉末的X射线衍射图证实了分别通过完全和不完全氧化铜颗粒而合成的Cu_2O纳米颗粒和Cu / Cu_2O金属陶瓷。该过程在室温下在去离子(DI)水存在下完成,并通过更改研磨时间和球尺寸进行控制。记录了Cu_2O-水和Cu / Cu_2O-水纳米流体的增强的热导率,并将其与非研磨的Cu-水纳米流体进行了比较。

著录项

  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|636-642|共7页
  • 作者单位

    Department of Energy and Mechanical Engineering, The Institute of Marine Industry, Gyeongsang National University, Cheondaegukchi- Gil 38, Tongyeong, Gyeongnam 650-160, South Korea;

    Department of Energy and Mechanical Engineering, The Institute of Marine Industry, Gyeongsang National University, Cheondaegukchi- Gil 38, Tongyeong, Gyeongnam 650-160, South Korea;

    Department of Agricultural & Industrial Engineering, Hajee Mohammad Danesh Science & Technology University, Dinajpur-5200, Bangladesh;

    Department of Energy and Mechanical Engineering, The Institute of Marine Industry, Gyeongsang National University, Cheondaegukchi- Gil 38, Tongyeong, Gyeongnam 650-160, South Korea;

    Department of Energy and Mechanical Engineering, The Institute of Marine Industry, Gyeongsang National University, Cheondaegukchi- Gil 38, Tongyeong, Gyeongnam 650-160, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Nanostructures; C. X-ray diffraction; C Electron microscopy; D. Thermal conductivity;

    机译:A.纳米结构;C. X射线衍射;C电子显微镜;D.导热系数;

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