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Structure and thermal property relationships in the thermomaterial di-n-butylammonium tetrafluoroborate for multipurpose cooling and cold-storage

García-Ben, Javier (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
Bermúdez-García, Juan Manuel (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
Dixey, Richard J.C. (författare)
School of Physical and Chemical Sciences, Queen Mary University of London, London E1 4NS UK
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Delgado-Ferreiro, Ignacio (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
Llamas-Saiz, Antonio Luis (författare)
Research Infrastructures Area, X-ray Unit, University of Santiago de Compostela, Santiago de Compostela 15782 Spain
López-Beceiro, Jorge (författare)
Universidade da Coruña, Campus Industrial de Ferrol, CITENI-Grupo Proterm, Campus de Esteiro Ferrol 15403 Spain, Campus de Esteiro
Artiaga, Ramón (författare)
Universidade da Coruña, Campus Industrial de Ferrol, CITENI-Grupo Proterm, Campus de Esteiro Ferrol 15403 Spain, Campus de Esteiro
Garcia Fernandez, Alberto (författare)
KTH,Tillämpad fysikalisk kemi
Cappel, Ute B. (författare)
KTH,Tillämpad fysikalisk kemi
Alonso, Bruno (författare)
ICGM, CNRS, Université de Montpellier, ENSCM, Montpellier Cedex 34095 France
Castro-García, Socorro (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
Phillips, Anthony E. (författare)
School of Physical and Chemical Sciences, Queen Mary University of London, London E1 4NS UK
Sánchez-Andújar, Manuel (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
Señarís-Rodríguez, María Antonia (författare)
University of A Coruna, QUIMOLMAT Group, Dpt. Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira
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University of A Coruna, QUIMOLMAT Group, Dpt Chemistry, Faculty of Science and Centro Interdisciplinar de Química e Bioloxía (CICA), Zapateira A Coruña 15071 Spain, Zapateira School of Physical and Chemical Sciences, Queen Mary University of London, London E1 4NS UK (creator_code:org_t)
Royal Society of Chemistry (RSC), 2023
2023
Engelska.
Ingår i: Journal of Materials Chemistry A. - : Royal Society of Chemistry (RSC). - 2050-7488 .- 2050-7496. ; 11:41, s. 22232-22247
Relaterad länk:
https://doi.org/10.1...
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Nowadays around 46% of food production around the world requires refrigeration, which is generally provided either by active vapour-compression (based on refrigerants with liquid-gas transitions) or passive cold-storage (based on solid-to-liquid phase change materials, SL-PCMs). However, in order to avoid fluid losses during the transitions, new thermomaterials with solid-solid transitions are desired for both applications. In this work, we find that [DBA][BF4] (DBA = di-n-butylammonium) is a promising thermomaterial with solid-solid phase transitions. This compound presents thermal properties of great interest not only for active barocaloric refrigeration, but also for passive cold-storage, which make this a unique multipurpose thermomaterial. The observed cold-storage capacity is very close to that of commercial SL-PCMs (E ∼ 135 kJ kg−1), while the pressure-induced thermal changes (ΔS ∼ [200-270] J K−1 kg−1) are superior to those of most barocaloric materials, operating under lower pressures (p ∼ [500-1000] bar). Moreover, the operating temperature range of this material is very adequate for food preservation (250-310 K), which is a great advantage over most barocaloric materials. Beyond the thermal properties, we perform deep structural characterization, which reveals a progressive structural disorder of the [DBA]+ cations and [BF4]− anions as the origin of such thermal properties, which will help the future rational design of enhanced thermomaterials.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Energiteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Energy Engineering (hsv//eng)

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