| 不同形貌纳米氧化铜的合成及导热应用 |
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| 引用本文：张李烨,汪明珠,于伟.不同形貌纳米氧化铜的合成及导热应用[J].上海第二工业大学(中文版),2019,(1):18-22 |
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| 基金项目:上海第二工业大学研究生项目基金(EGD17YJ0014) 资助 |
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| 中文摘要:纳米氧化铜(CuO) 在传感器、催化及强化传热领域有优异的性能。以微生物法浸取的Cu2+为铜源, 通过改
变溶液的pH 制备不同形貌的纳米CuO, 并对产物进行表征与分析。制备了以硅油为基体的含纳米CuO 的纳米流
体, 并测试了其热导率。结果表明, 纳米流体的热导率与添加CuO 的体积分数基本呈线性关系。当添加相的体积分
数为5% 时, 片状、梭子状和蒲公英状的CuO 纳米流体热导率分别提高了12.3%、12.9%和29.0%。这说明CuO 的
形貌对复合体系的热导率有显著的影响, 其中蒲公英状的纳米材料效果最佳。 |
| 中文关键词:纳米氧化铜 热导率 硅油 纳米流体 |
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| Synthesis and Thermal Application of Copper Oxide Nanoparticles withDifferent Morphologies |
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| Abstract:Copper oxide (CuO) nanoparticles have excellent performance in the field of sensor, catalysis and heat transfer enhancement.
Copper ions extracted by microbial leaching were used as the copper source and CuO nanoparticles with different morphologies were
prepared by changing the pH of the solution, and the products were characterized and analyzed. The silicone based nanofluids containing
CuO nanoparticles were prepared and their thermal conductivities were measured. The results show that the thermal conductivities of
nanofluids have a nearly linear relationship with the volume fraction of CuO. When the additive volume fraction is 5%, the enhanced
thermal conductivities for shapes of flake, shuttle and dandelion of CuO nanofluids are 12.3%, 12.9% and 29%, respectively. It demonstrates
that the morphology of CuO has a significant effect on the thermal conductivity of the composite system and the dandelion-shaped
nanomaterials have the optimal effect. |
| keywords:copper oxide nanoparticles thermal conductivity silicone oil nanofluids |
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