journal article·2023-03

Barocaloric effect in neopentylglycol plastic crystal: A theoretical study

N.A. de Oliveira

Acta Materialia· Volume 246
Publisher page

Abstract

In this paper, we theoretically discuss the entropy changes and the barocaloric effect in neopentylglycol plastic crystal. For this purpose, we use a microscopical model Hamiltonian in which are included the rotational and vibrational motions of the molecules in the lattice. The theoretically calculated isobaric entropy and the barocaloric quantities Δ S i s o and Δ T a d are in reasonable agreement with the experimental observations.
Source: expertdata · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Shape Memory Alloy Transformations · Organic and Molecular Conductors Research · Ferroelectric and Piezoelectric Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (33)

Show source-provided references
1. Cooling by adiabatic pressure application in Pr1x−LaxNiO310.1063/1.122083 ↗
2. A novel principle for cooling by adiabatic pressure application in rare-earth compounds10.1016/S0925-8388(00)00662-9 ↗
3. Entropy change upon magnetic field and pressure variations10.1063/1.2434154 ↗
4. Giant solid-state barocaloric effect in the Ni−Mn−In magnetic shape-memory alloy10.1038/nmat2731 ↗
5. Barocaloric effect and the pressure induced solid state refrigerator
6. Magnetocaloric and barocaloric effects: Theoretical description and trends10.1016/j.ijrefrig.2013.05.010 ↗
7. Giant barocaloric effect enhanced by the frustration of the antiferromagnetic phase in Mn3GaN10.1038/nmat4117 ↗
8. A large barocaloric effect and its reversible behavior with an enhanced relative volume change for Ni42.3Co7.9Mn38.8Sn11 Heusler alloy10.1016/j.jallcom.2018.01.244 ↗
9. Large barocaloric effects at low pressures in natural rubber10.1016/j.eurpolymj.2017.05.017 ↗
10. Giant room-temperature barocaloric effects in PDMS rubber at low pressures10.1016/j.eurpolymj.2017.12.007 ↗
11. T-P phase diagrams and the barocaloric effect in materials with successive phase transitions10.1088/1361-6463/aa8025 ↗
12. The mechanocaloric potential of spin crossover compounds
13. Giant barocaloric effect at the spin crossover transition of a molecular crystal10.1002/adma.201807334 ↗
14. A microscopic refrigeration process triggered through spin-crossover mechanism10.1063/1.4982792 ↗
15. Colossal refrigerant capacity in [Fe(hyptrz)3]A2.H2O around the freezing temperature of water10.1103/PhysRevB.98.224408 ↗
16. Large barocaloric effect in spin-crossover complex [CrI2(depe)2]10.1063/5.0003644 ↗
17. Refrigeration through barocaloric effect using the upin crossover complex Fe[H2B(pz)2]2(bipy)10.1002/pssb.202100108 ↗
18. Giant barocaloric effects over a wide temperature range in superionic conductor AgI10.1038/s41467-017-01898-2 ↗
19. Materials with giant mechanocaloric effects: Cooling by strength10.1002/adma.201603607 ↗
20. Reversible barocaloric effects over a large temperature span in fullerite C6010.1039/D0TA05399F ↗
21. Colossal reversible barocaloric effects in layered hybrid perovskite (C10H21NH3)2MnCl4 under low pressure near room temperature
22. Colossal barocaloric effects in the complex hydride Li2B12H1210.1038/s41598-021-91123-4 ↗
23. Colossal barocaloric effects in plastic crystals10.1038/s41586-019-1042-5 ↗
24. Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol10.1038/s41467-019-09730-9 ↗
25. Reversible and irreversible colossal barocaloric effects in plastic crystals10.1039/C9TA10947A ↗
26. Understanding colossal barocaloric effects in plastic crystals10.1038/s41467-020-18043-1 ↗
27. Giant barocaloric effect in neopentylglycol graphene nanosheets composites with large thermal conductivity mate
28. Kittel · 1987
29. Glasstone · 1951
30. Theoretical aspects of the magnetocaloric effect10.1016/j.physrep.2009.12.006 ↗
31. A simple method to estimate entropy and free energy of atmospheric gases from their action10.3390/e21050454 ↗
32. Coleman · 2011
33. Huang · 1987