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Effect of doping ferrocene in the working fluid of electrohydrodynamic (EHD) micropumps

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Abstract

The effect of doping ferrocene in the working fluid of electrohydrodynamic micropumps was investigated under the application of DC electric fields. The micropump consisted of 100 planar electrode pairs that were embedded along the bottom wall of a 100-micron-high, 5-mm-wide and 26-mm-long microchannel. The width of the emitter and collector electrodes was 20 and 40 µm, respectively, with inter-electrode spacing of 30 µm. A redox dopant, ferrocene, was diffused homogeneously into the working fluid HFE-7100 at 0.05, 0.1 and 0.2 % concentration by weight. The static pressure head generation and flow rate at different back pressure conditions were measured under different applied DC voltages. The current and pressure generated with the doped working fluid were significantly higher than with pure HFE-7100 under an applied DC field. A maximum static pressure of 6.7 kPa and flow rate of 0.47 mL/min at no back pressure were achieved at 700 V.

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Acknowledgments

The support from the Natural Sciences and Engineering Research Council of Canada (NSERC), Ontario Ministry of Research and Innovation through the Ontario Research Fund and Canada Research Chairs Program is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Mechanical Engineering, McMaster University, Hamilton, ON, L8S 4L7, Canada

    M. K. Russel, S. M. Hasnain, P. R. Selvaganapathy & C. Y. Ching

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  1. M. K. Russel
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  2. S. M. Hasnain
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  3. P. R. Selvaganapathy
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  4. C. Y. Ching
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Correspondence to C. Y. Ching.

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Russel, M.K., Hasnain, S.M., Selvaganapathy, P.R. et al. Effect of doping ferrocene in the working fluid of electrohydrodynamic (EHD) micropumps. Microfluid Nanofluid 20, 112 (2016). https://doi.org/10.1007/s10404-016-1777-3

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  • DOI: https://doi.org/10.1007/s10404-016-1777-3

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