Giant barocaloric effects over a wide temperature range in superionic conductor AgI

Araceli Aznar, Pol Lloveras, Michela Romanini, María Barrio, Josep-Lluís Tamarit, Claudio Cazorla (), Daniel Errandonea, Neil D. Mathur, Antoni Planes, Xavier Moya () and Lluís Mañosa ()
Additional contact information
Araceli Aznar: Universitat Politècnica de Catalunya
Pol Lloveras: Universitat Politècnica de Catalunya
Michela Romanini: Universitat Politècnica de Catalunya
María Barrio: Universitat Politècnica de Catalunya
Josep-Lluís Tamarit: Universitat Politècnica de Catalunya
Claudio Cazorla: University of New South Wales Australia
Daniel Errandonea: Universitat de València
Neil D. Mathur: University of Cambridge
Antoni Planes: Universitat de Barcelona
Xavier Moya: University of Cambridge
Lluís Mañosa: Universitat de Barcelona

Nature Communications, 2017, vol. 8, issue 1, 1-6

Abstract: Abstract Current interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order. Here we demonstrate giant inverse barocaloric effects in the solid electrolyte AgI, near its superionic phase transition at ~420 K. Over a wide range of temperatures, hydrostatic pressure changes of 2.5 kbar yield large and reversible barocaloric effects, resulting in large values of refrigerant capacity. Moreover, the peak values of isothermal entropy change (60 J K−1 kg−1 or 0.34 J K−1 cm−3) and adiabatic temperature changes (18 K), which we identify for a starting temperature of 390 K, exceed all values previously recorded for barocaloric materials. Our work should therefore inspire the study of barocaloric effects in a wide range of solid electrolytes, as well as the parallel development of cooling devices.

Date: 2017
References: Add references at CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.nature.com/articles/s41467-017-01898-2 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01898-2

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-017-01898-2

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().