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Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage

In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as ε-caprolactone and γ-valerolactone were easily purchased through chemi...

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Autores principales: Ravotti, Rebecca, Fellmann, Oliver, Lardon, Nicolas, Fischer, Ludger J., Stamatiou, Anastasia, Worlitschek, Jörg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6479808/
https://www.ncbi.nlm.nih.gov/pubmed/30987094
http://dx.doi.org/10.3390/molecules24071300
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author Ravotti, Rebecca
Fellmann, Oliver
Lardon, Nicolas
Fischer, Ludger J.
Stamatiou, Anastasia
Worlitschek, Jörg
author_facet Ravotti, Rebecca
Fellmann, Oliver
Lardon, Nicolas
Fischer, Ludger J.
Stamatiou, Anastasia
Worlitschek, Jörg
author_sort Ravotti, Rebecca
collection PubMed
description In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as ε-caprolactone and γ-valerolactone were easily purchased through chemical suppliers, while 1,2-campholide, oxa-adamantanone and dibenzochromen-6-one were synthesized through Baeyer-Villiger oxidation. The compounds were characterized with respect to attenuated total reflectance spectroscopy and gas chromatography coupled with mass spectroscopy, in order to confirm their chemical structures and identity. Subsequently, thermogravimetric analysis and differential scanning calorimetry were used to measure the phase change temperatures, enthalpies of fusion, degradation temperatures, as well to estimate the degree of supercooling. The lactones showed a wide range of phase change temperatures from −40 °C to 290 °C, making them a high interest for both low and high temperature latent heat storage applications, given the lack of organic phase change materials covering phase change temperature ranges below 0 °C and above 80 °C. However, low enthalpies of fusion, high degrees of supercooling and thermal degradations at low temperatures were registered for all samples, rendering them unsuitable as phase change materials.
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spelling pubmed-64798082019-04-30 Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage Ravotti, Rebecca Fellmann, Oliver Lardon, Nicolas Fischer, Ludger J. Stamatiou, Anastasia Worlitschek, Jörg Molecules Article In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as ε-caprolactone and γ-valerolactone were easily purchased through chemical suppliers, while 1,2-campholide, oxa-adamantanone and dibenzochromen-6-one were synthesized through Baeyer-Villiger oxidation. The compounds were characterized with respect to attenuated total reflectance spectroscopy and gas chromatography coupled with mass spectroscopy, in order to confirm their chemical structures and identity. Subsequently, thermogravimetric analysis and differential scanning calorimetry were used to measure the phase change temperatures, enthalpies of fusion, degradation temperatures, as well to estimate the degree of supercooling. The lactones showed a wide range of phase change temperatures from −40 °C to 290 °C, making them a high interest for both low and high temperature latent heat storage applications, given the lack of organic phase change materials covering phase change temperature ranges below 0 °C and above 80 °C. However, low enthalpies of fusion, high degrees of supercooling and thermal degradations at low temperatures were registered for all samples, rendering them unsuitable as phase change materials. MDPI 2019-04-03 /pmc/articles/PMC6479808/ /pubmed/30987094 http://dx.doi.org/10.3390/molecules24071300 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ravotti, Rebecca
Fellmann, Oliver
Lardon, Nicolas
Fischer, Ludger J.
Stamatiou, Anastasia
Worlitschek, Jörg
Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title_full Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title_fullStr Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title_full_unstemmed Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title_short Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage
title_sort investigation of lactones as innovative bio-sourced phase change materials for latent heat storage
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6479808/
https://www.ncbi.nlm.nih.gov/pubmed/30987094
http://dx.doi.org/10.3390/molecules24071300
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