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Nanofluid Based on Carbon Dots Functionalized with Ionic Liquids for Energy Applications

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  • Helena M. R. Gonçalves

    (Chemistry Department and CQ-VR, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
    REQUIMTE, Instituto Superior de Engenharia do Porto, 4200-072 Porto, Portugal)

  • Susana A. F. Neves

    (REQUIMTE, Instituto Superior de Engenharia do Porto, 4200-072 Porto, Portugal)

  • Abel Duarte

    (REQUIMTE, Instituto Superior de Engenharia do Porto, 4200-072 Porto, Portugal)

  • Verónica de Zea Bermudez

    (Chemistry Department and CQ-VR, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal)

Abstract

The development of materials that can help overcome the current limitations in energy storage and consumption is a pressing need. Recently, we developed non-Newtonian nanofluids based on non-toxic, carbon nanoparticles (NPs), carbon dots (Cdots) functionalized with ionic liquids. Here, we wanted to prove that these new nanofluids are, not only interesting as possible electrolytes, but also as new organic/inorganic hybrid separators. As such, we developed an entrapment method using poly(vinyl alcohol) (PVA). Indeed, the highly conductive Cdots were successfully retained inside the membrane even upon the application of several wetting/drying cycles. Moreover, the morphological characteristics did not change upon wetting/drying cycles and remained constant for more than four months. These nanofluids could be an interesting approach to tackle some of the current problems in the fields of solid-state batteries, and energy storage, among others.

Suggested Citation

  • Helena M. R. Gonçalves & Susana A. F. Neves & Abel Duarte & Verónica de Zea Bermudez, 2020. "Nanofluid Based on Carbon Dots Functionalized with Ionic Liquids for Energy Applications," Energies, MDPI, vol. 13(3), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:649-:d:316034
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    References listed on IDEAS

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    1. Sarkar, Jahar & Ghosh, Pradyumna & Adil, Arjumand, 2015. "A review on hybrid nanofluids: Recent research, development and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 164-177.
    2. Minea, Alina Adriana & Murshed, S. M. Sohel, 2018. "A review on development of ionic liquid based nanofluids and their heat transfer behavior," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 584-599.
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