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Electrical conductivity of water-based palladium nanofluids

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Abstract

Although the thermal conductivities and viscosities of nanofluids have been widely measured, relatively few studies concerning their electrical conductivity have been reported. Stable nanofluids consisting of palladium nanoparticles, with a mean particle size of 5.63 nm, were dispersed in distilled water with volume fractions between 0.00 and 1.00 vol%. The palladium nanoparticles were prepared using a reduction method in the presence of ultrasound waves and characterized using X-ray powder diffraction, transmission electron microscopy, and UV–Visible spectroscopy. The electrical conductivity of the nanofluids of palladium nanoparticles in distilled water was measured both as a function of palladium loading and temperature and was found to increase with increasing NP volume fraction and temperature. A 75.67 % increase in the electrical conductivity of distilled water was achieved by NP loading of 1 vol% at 25 °C. It was observed that increasing temperature has a much greater effect on electrical conductivity enhancement than increasing palladium loading.

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Acknowledgments

The authors also express their gratitude to Ferdowsi University of Mashhad for support to this project (17395/1).

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Authors and Affiliations

  1. Department of Chemistry, Ferdowsi University of Mashhad, 91779, Mashhad, Iran

    Elaheh K. Goharshadi, Hossein Azizi-Toupkanloo & Mahdi Karimi

  2. Center of Nano Research, Ferdowsi University of Mashhad, Mashhad, Iran

    Elaheh K. Goharshadi, Hossein Azizi-Toupkanloo & Mahdi Karimi

Authors
  1. Elaheh K. Goharshadi
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  2. Hossein Azizi-Toupkanloo
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  3. Mahdi Karimi
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Correspondence to Elaheh K. Goharshadi.

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Goharshadi, E.K., Azizi-Toupkanloo, H. & Karimi, M. Electrical conductivity of water-based palladium nanofluids. Microfluid Nanofluid 18, 667–672 (2015). https://doi.org/10.1007/s10404-014-1465-0

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  • DOI: https://doi.org/10.1007/s10404-014-1465-0

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