Issue 39, 2020

Multifunctional properties and multi-energy storage in the [(CH3)3S][FeCl4] plastic crystal

Abstract

In this work, we report a new halometallate [(CH3)3S][FeCl4] with plastic crystal behaviour as a new material for multi-energy storage. This material undergoes a first-order solid–solid plastic crystal phase transition near room temperature with a relatively large latent heat (∼40 kJ kg−1) and an operational temperature for storing and releasing thermal energy between 42 °C (315 K) and 29 °C (302 K), very appropriate for solar thermal energy storage. In addition, the dielectric, magnetization and electron spin resonance studies reveal that this material exhibits multifunctional properties with temperature-induced reversible changes in its dielectric, conducting and magnetic behaviour associated with the phase transition. Also, the dielectric permittivity increases sharply up to 5 times when inducing the phase transition, which can be exploited to store electric energy into a capacitor. Therefore, [(CH3)3S][FeCl4] is a very interesting compound with the coexistence of multifunctional properties that can be useful for both solar thermal and electric energy storage.

Graphical abstract: Multifunctional properties and multi-energy storage in the [(CH3)3S][FeCl4] plastic crystal

Supplementary files

Article information

Article type
Paper
Submitted
25 Aug 2020
Accepted
28 Aug 2020
First published
31 Aug 2020

J. Mater. Chem. C, 2020,8, 13686-13694

Multifunctional properties and multi-energy storage in the [(CH3)3S][FeCl4] plastic crystal

J. Salgado-Beceiro, J. M. Bermúdez-García, A. L. Llamas-Saiz, S. Castro-García, M. A. Señarís-Rodríguez, F. Rivadulla and M. Sánchez-Andújar, J. Mater. Chem. C, 2020, 8, 13686 DOI: 10.1039/D0TC04044D

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