The Imine-Based COF TpPa-1 as an Efficient Cooling Adsorbent That Can Be Regenerated by Heat or Light
Pérez-Carvajal, Javier (Institut Català de Nanociència i Nanotecnologia)
Boix, Gerard (Institut Català de Nanociència i Nanotecnologia)
Imaz, Inhar (Institut Català de Nanociència i Nanotecnologia)
Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)

Date:	2019
Abstract:	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 CO. 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.
Grants:	Ministerio de Economía y Competitividad MAT2015-65354-C2-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-328 European Commission 615954 Ministerio de Economía y Competitividad SEV-2017-0706
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Adsorption heat transformation ; Cooling ; Covalent-organic framework ; Porous materials ; Visible light
Published in:	Advanced Energy Materials, Vol. 9, Issue 39 (October 2019) , art. 1901535, ISSN 1614-6840

DOI: 10.1002/aenm.201901535

Postprint 12 p, 607.2 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles