Article
Materials Science, Multidisciplinary
N. A. de Oliveira
Summary: In this paper, the entropy changes and barocaloric effect in neopentylglycol plastic crystal are discussed theoretically. A microscopical model Hamiltonian is used to incorporate the rotational and vibrational motions of the molecules in the lattice. The theoretically calculated isobaric entropy and barocaloric quantities Delta S-iota so and Delta T-ad are found to be in reasonable agreement with experimental observations.
Article
Multidisciplinary Sciences
Qingyong Ren, Ji Qi, Dehong Yu, Zhe Zhang, Ruiqi Song, Wenli Song, Bao Yuan, Tianhao Wang, Weijun Ren, Zhidong Zhang, Xin Tong, Bing Li
Summary: A giant barocaloric effect has been observed in inorganic NH4I near room temperature, which could help overcome the driving field challenge in solid-state refrigeration. The material exhibits high reversible entropy changes and a structural phase transition. Analysis of the crystal structures and atomic dynamics reveals that a strong reorientation-vibration coupling is responsible for the pressure sensitivity. This research has the potential to advance the practical application of barocaloric refrigeration.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Kun Tao, Wenhai Song, Jianchao Lin, Xuekai Zhang, Peng Tong, Zhao Zhang, Ji Qi, Bing Li, Langsheng Ling, Long Ma, Yuping Sun
Summary: Barocaloric refrigeration is a new clean and energy-efficient technology, primarily based on first-order phase transitions which can lead to unfavorable hysteresis. This study demonstrates the potential for achieving a giant BC effect with weak hysteresis in the antiperovskite compound PdNMn3 during the AFM to PM phase transition.
SCRIPTA MATERIALIA
(2021)
Article
Nanoscience & Nanotechnology
Chenyang Yu, Jianqi Huang, Ji Qi, Peng Liu, Da Li, Teng Yang, Zhidong Zhang, Bing Li
Summary: Giant barocaloric effects are observed in formamidinium iodide, which could provide an alternative to vapor-compression refrigeration and has potential applications.
Article
Materials Science, Multidisciplinary
Yao Liu, Houbo Zhou, Zhitong Xu, Die Liu, Jian Li, Fengxia Hu, Tianyu Ma
Summary: The thermal conductivity of neopentylglycol was enhanced by compositing it with graphene nanosheets, offering a simple and feasible way to accelerate the application of these materials in the solid-state refrigeration technique.
MATERIALS RESEARCH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Araceli Aznar, Philippe Negrier, Antoni Planes, Lluis Manosa, Enric Stern-Taulats, Xavier Moya, Maria Barrio, Josep-Lluis Tamarit, Pol Lloveras
Summary: Plastic crystals derived from adamantane exhibit colossal reversible barocaloric effects with high sensitivity to temperature changes under moderate pressures. In particular, 1-Cl-adamantane shows optimal performance over a wide temperature range, surpassing any other known barocaloric material under a pressure change of 1 kbar.
APPLIED MATERIALS TODAY
(2021)
Article
Energy & Fuels
Frederic Rendell-Bhatti, Ming Zeng, Pol Lloveras, Josep-Lluis Tamarit, Maria Barrio, Eamonn T. Connolly, Donald A. MacLaren, Freya Johnson, Lesley F. Cohen, David Boldrin
Summary: The magnetically frustrated manganese nitride antiperovskite family shows significant entropy changes under changes in hydrostatic pressure near a first-order antiferromagnetic to paramagnetic phase transition, which can be utilized in solid-state barocaloric cooling. Previous studies have shown that the transition hysteresis significantly reduces the reversible barocaloric effects. In this study, we demonstrate that the transition hysteresis can be tailored through quaternary alloying in the Mn3Cu1-xSnxN system.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Peng-Tao Cheng, Zhao Zhang, Xu-Cai Kan, Cheng-Liang Zhang, Zheng-Ming Zhang, Bing Li, Dun-Hui Wang
Summary: This study finds that MnAs(0.94)S(b0.0)6 alloy exhibits a large barocaloric entropy change under low hydrostatic pressures, showing excellent barocaloric cooling performance.
Article
Nanoscience & Nanotechnology
Alejandro Salvatori, Philippe Negrier, Araceli Aznar, Maria Barrio, Josep Lluis Tamarit, Pol Lloveras
Summary: Plastic crystals have the potential to be used in environmentally friendly cooling and waste heat management. This study investigates the pressure-induced caloric response of three plastic crystals and finds that two of them exhibit significant barocaloric effects under small pressure changes. The transition temperatures above ambient make these compounds suitable for waste heat management and industrial cooling and heat pumping.
Article
Chemistry, Multidisciplinary
Madeleine Geers, Jie Yie Lee, Sanliang Ling, Oscar Fabelo, Laura Canadillas-Delgado, Matthew J. J. Cliffe
Summary: AMX(3) compounds exhibit diverse structures, including the two-dimensional post-perovskite structure with corner- and edge-sharing octahedra. Molecular post-perovskites are rare and none have reported magnetic structures. Here, we report the synthesis, structure, and magnetic properties of CsNi(NCS)(3), CsCo(NCS)(3), and CsMn(NCS)(3), which are molecular post-perovskites. Magnetisation measurements reveal that all three compounds exhibit magnetic ordering, with CsNi(NCS)(3) and CsCo(NCS)(3) showing weak ferromagnetic ordering and CsMn(NCS)(3) exhibiting antiferromagnetic ordering. Neutron diffraction data confirm non-collinear magnetic structures in CsNi(NCS)(3) and CsMn(NCS)(3). These results highlight the potential of molecular frameworks for realizing spin textures required for the next generation of information technology.
Article
Chemistry, Multidisciplinary
Junning Li, Maria Barrio, David J. Dunstan, Richard Dixey, Xiaojie Lou, Josep-Lluis Tamarit, Anthony E. Phillips, Pol Lloveras
Summary: Barocaloric effects in a layered hybrid organic-inorganic compound (C10H21NH3)(2)MnCl4, which are reversible and colossal under pressure changes below 0.1 GPa, are reported. These effects are attributed to a phase transition characterized by features such as strong disordering of organic chains, a large volume change, high sensitivity of transition temperature to pressure, and small hysteresis. The obtained values are unprecedented for solid-state cooling materials at low pressure changes, indicating that colossal effects can be achieved in compounds other than plastic crystals.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ekaterina Mikhaleva, Mikhail Gorev, Vitaly Bondarev, Evgeny Bogdanov, Igor Flerov
Summary: This study investigates the influence of anisotropy and texture on ElCE and BCE effects in (NH4)(2)SO4 single crystal and ceramic, finding that the ElCE values in ammonium sulphate significantly exceed BCE values, indicating its potential as a solid-state refrigerant.
SCRIPTA MATERIALIA
(2021)
Article
Thermodynamics
Liutao Zhu, Zhaofeng Dai, Yuanzhi Gao, Dongxu Wu, Changling Wang, Dongliang Zhao, Xiaohui She, Yulong Ding, Xiaosong Zhang
Summary: This study successfully lowered the phase transition temperature and improved the thermal conductivity of the NPG-based barocaloric material by adding graphene. The thermal conductivity of the composite was increased by 110% compared to the binary system. The numerical model results showed that the cold-extraction time of the barocaloric refrigeration cycle using the composite with 5% graphene as the refrigerant was shortened by 50%.
JOURNAL OF THERMAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kun Zhang, Ruiqi Song, Ji Qi, Zhe Zhang, Zhao Zhang, Chenyang Yu, Kuo Li, Zhidong Zhang, Bing Li
Summary: A novel plastic crystal system, carboranes (C2B10H12), with large barocaloric effects around room temperature, has been reported. The study suggests that delicate tuning of molecular isomerism is an effective strategy to enhance barocaloric performances.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Thermodynamics
Liutao Zhu, Zhaofeng Dai, Yuanzhi Gao, Dongxu Wu, Changling Wang, Dongliang Zhao, Xiaohui She, Yulong Ding, Xiaosong Zhang
Summary: This research lowers the solid-solid phase transition temperature and improves the thermal conductivity of the Neopentyl glycol (NPG)-based barocaloric material. By introducing Trimethylolpropane (TMP) as a co-component to form a binary system with NPG, the solid-solid phase transition temperature is reduced to 283.15 K. Graphene is added to the binary system to enhance thermal conductivity, and the optimal mass ratio of graphene is determined to be 5%. The cold-extraction time of the barocaloric refrigeration cycle is shortened by 50% when using the composite with 5% graphene as the refrigerant.
JOURNAL OF THERMAL SCIENCE
(2023)
Article
Physics, Condensed Matter
Jonathan F. Gebbia, Teresa Castan, Pol Lloveras, Marcel Porta, Avadh Saxena, Antoni Planes
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2018)
Article
Physics, Applied
Tapas Samanta, Pol Lloveras, Ahmad Us Saleheen, Daniel L. Lepkowski, Emily Kramer, Igor Dubenko, Philip W. Adams, David P. Young, Maria Barrio, Josep Ll. Tamarit, Naushad Ali, Shane Stadler
APPLIED PHYSICS LETTERS
(2018)
Article
Thermodynamics
Maria Barrio, Rafael Levit, Pol Lloveras, Araceli Aznar, Philippe Negrier, Denise Mondieig, Josep-Lluis Tamarit
FLUID PHASE EQUILIBRIA
(2018)
Article
Multidisciplinary Sciences
P. Lloveras, A. Aznar, M. Barrio, Ph. Negrier, C. Popescu, A. Planes, L. Manosa, E. Stern-Taulats, A. Avramenko, N. D. Mathur, X. Moya, J. -Ll. Tamarit
NATURE COMMUNICATIONS
(2019)
Article
Nanoscience & Nanotechnology
Pol Lloveras, Tapas Samanta, Maria Barrio, Igor Dubenko, Naushad Ali, Josep-Lluis Tamarit, Shane Stadler
Article
Chemistry, Multidisciplinary
Junning Li, Maria Barrio, David J. Dunstan, Richard Dixey, Xiaojie Lou, Josep-Lluis Tamarit, Anthony E. Phillips, Pol Lloveras
Summary: Barocaloric effects in a layered hybrid organic-inorganic compound (C10H21NH3)(2)MnCl4, which are reversible and colossal under pressure changes below 0.1 GPa, are reported. These effects are attributed to a phase transition characterized by features such as strong disordering of organic chains, a large volume change, high sensitivity of transition temperature to pressure, and small hysteresis. The obtained values are unprecedented for solid-state cooling materials at low pressure changes, indicating that colossal effects can be achieved in compounds other than plastic crystals.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Alejandro Salvatori, Philippe Negrier, Araceli Aznar, Maria Barrio, Josep Lluis Tamarit, Pol Lloveras
Summary: Plastic crystals have the potential to be used in environmentally friendly cooling and waste heat management. This study investigates the pressure-induced caloric response of three plastic crystals and finds that two of them exhibit significant barocaloric effects under small pressure changes. The transition temperatures above ambient make these compounds suitable for waste heat management and industrial cooling and heat pumping.
Article
Energy & Fuels
Frederic Rendell-Bhatti, Ming Zeng, Pol Lloveras, Josep-Lluis Tamarit, Maria Barrio, Eamonn T. Connolly, Donald A. MacLaren, Freya Johnson, Lesley F. Cohen, David Boldrin
Summary: The magnetically frustrated manganese nitride antiperovskite family shows significant entropy changes under changes in hydrostatic pressure near a first-order antiferromagnetic to paramagnetic phase transition, which can be utilized in solid-state barocaloric cooling. Previous studies have shown that the transition hysteresis significantly reduces the reversible barocaloric effects. In this study, we demonstrate that the transition hysteresis can be tailored through quaternary alloying in the Mn3Cu1-xSnxN system.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Chemistry, Physical
Alejandro Salvatori, David Aguila, Guillem Aromi, Lluis Manosa, Antoni Planes, Pol Lloveras, Luis Carlos Pardo, Markus Appel, Guillaume F. Nataf, Fabien Giovannelli, Maria Barrio, Josep Lluis Tamarit, Michela Romanini
Summary: Materials undergoing pressure-driven solid-solid phase transformations can be a valuable alternative for eco-friendly refrigeration, heat pumping and waste heat recovery based on the barocaloric effect. Ferroelectric compounds and plastic crystals have shown their potential in these fields due to their ability to undergo large changes in volume and entropy at the transition, resulting in a significant pressure-induced caloric response.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Correction
Chemistry, Multidisciplinary
Alejandro Salvatori, Philippe Negrier, Stephane Massip, Antonio Munoz-Duque, Pol Lloveras, Maria Barrio, Josep-Lluis Tamarit
Article
Chemistry, Multidisciplinary
Alejandro Salvatori, Philippe Negrier, Stephane Massip, Antonio Munoz-Duque, Pol Lloveras, Maria Barrio, Josep-Lluis Tamarit
Summary: The polymorphic behavior of 2-adamantanol and 2-methyl-2-adamantanol at different temperatures has been investigated using X-ray diffraction and differential scanning calorimetry. The study reveals that 2-adamantanol undergoes a single-crystal to single-crystal phase transition with increasing temperature, accompanied by the disorder of hydrogen atoms linked to oxygen atoms. The low-temperature phase of 2-methyl-2-adamantanol exhibits a fully ordered orthorhombic structure. Both compounds display an orientationally disordered phase at high temperatures.
Review
Energy & Fuels
Pol Lloveras, Josep-Lluis Tamarit
Summary: Solid-state caloric effects have the potential to be a disruptive cooling technology, but the development and wide implementation of competitive devices still face many challenges. Barocaloric cooling may offer hope to overcome the shortcomings of other solid-state methods.
MRS ENERGY & SUSTAINABILITY
(2021)
Article
Chemistry, Physical
Junning Li, David J. Dunstan, Xiaojie Lou, Antoni Planes, Lluis Manosa, Maria Barrio, Josep-Lluis Tamarit, Pol Lloveras
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Physical
Araceli Aznar, Pol Lloveras, Maria Barrio, Philippe Negrier, Antoni Planes, Lluis Manosa, Neil D. Mathur, Xavier Moya, Josep-Lluis Tamarit
JOURNAL OF MATERIALS CHEMISTRY A
(2020)