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Thermal conductivity enhancement of Ag nanowires on an organic phase change material

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Abstract

One of the greatest challenges in the application of organic phase change materials (PCMs) is to increase their thermal conductivity while maintaining high phase change enthalpy. 1-Tetradecanol/Ag nanowires composite PCM containing 62.73 wt% (about 11.8 vol%) of Ag nanowires showed remarkably high thermal conductivity (1.46 W m−1 K−1) and reasonably high phase change enthalpy (76.5 J g−1). This behavior was attributed to the high aspect ratio of Ag nanowires, few thermal conduct interfaces, and high interface thermal conductivity of Ag nanowires in the composite PCM. These results indicated that Ag nanowires might be strong candidates for thermal conductivity enhancement of organic PCMs.

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Acknowledgements

Financial support from National Natural Science Foundation of China [Nos. 20833009, 50671098,U0734005 and 20775010], 863 projects (2007AA05Z115 and 2007AA05Z102), and Changsha University of Science and Technology is greatly appreciated.

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Authors and Affiliations

  1. School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha, 410004, People’s Republic of China

    J. L. Zeng, Z. Cao, D. W. Yang & L. Zhang

  2. Materials & Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China

    L. X. Sun

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  1. J. L. Zeng
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  2. Z. Cao
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  3. D. W. Yang
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  4. L. X. Sun
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  5. L. Zhang
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Correspondence to J. L. Zeng or L. X. Sun.

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Zeng, J.L., Cao, Z., Yang, D.W. et al. Thermal conductivity enhancement of Ag nanowires on an organic phase change material. J Therm Anal Calorim 101, 385–389 (2010). https://doi.org/10.1007/s10973-009-0472-y

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  • DOI: https://doi.org/10.1007/s10973-009-0472-y

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