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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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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. |
format | Online Article Text |
id | pubmed-6479808 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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