The Imine-Based COF TpPa-1 as an Efficient Cooling Adsorbent That Can Be Regenerated by Heat or Light

Javier Pérez-Carvajal, Gerard Boix, Inhar Imaz, Daniel Maspoch

    Research output: Contribution to journalArticleResearch

    4 Citations (Scopus)

    Abstract

    © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Adsorption-based cooling systems, which can be driven by waste heat and solar energy, are promising alternatives to conventional, compression-based cooling systems, as they demand less energy and emit less CO2. The performance of adsorption-based cooling systems relates directly to the performance of the working pairs (sorbent–water). Accordingly, improvement of these systems relies on the continual discovery of new sorbents that enable greater mass exchange while requiring less energy for regeneration. Here, it is proposed that covalent-organic frameworks (COFs) can replace traditional sorbents for adsorption-based cooling. In tests mimicking standard operating conditions for industry, the imine-based COF TpPa-1 exhibits a regeneration temperature below 65 °C and a cooling coefficient of performance of 0.77 – values which are comparable to those reported for the best metal–organic framework sorbents described to date. Moreover, TpPa-1 exhibits a photothermal effect and can be regenerated by visible light, thereby opening the possibility for its use in solar-driven cooling.
    Original languageEnglish
    Article number1901535
    JournalAdvanced Energy Materials
    Volume9
    DOIs
    Publication statusPublished - 1 Oct 2019

    Keywords

    • adsorption heat transformation
    • cooling
    • covalent-organic framework
    • porous materials
    • visible light

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