Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids

The increasing demand for heating/cooling is of grave concern due to the ever-increasing population. One method that addresses this issue and uses renewable energy is Thermochemical Energy Storage (TCES), which is based on the reversible chemical reactions and/or sorption processes of gases in solid...

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Autores principales:	Ciara Byrne, Alenka Ristić, Suzana Mal, Mojca Opresnik, Nataša Zabukovec Logar
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ZIF-8 ZIF-90 DSC adsorption TCM materials Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/da77742016f24709a02a5903694b8391
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spelling	oai:doaj.org-article:da77742016f24709a02a5903694b83912021-11-25T17:19:38ZEvaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids10.3390/cryst111114222073-4352https://doaj.org/article/da77742016f24709a02a5903694b83912021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1422https://doaj.org/toc/2073-4352The increasing demand for heating/cooling is of grave concern due to the ever-increasing population. One method that addresses this issue and uses renewable energy is Thermochemical Energy Storage (TCES), which is based on the reversible chemical reactions and/or sorption processes of gases in solids or liquids. Zeolitic imidazolate frameworks (ZIFs), composed of transition metal ions (Zn, Co, etc.) and imidazolate linkers, have gained significant interest recently as porous adsorbents in low temperature sorption-based TES (sun/waste heat). In this study, we examined two different sodalite-type ZIF structures (ZIF-8 and ZIF-90) for their potential heat storage applications, based on the adsorption of water, methanol and ethanol as adsorbates. Both ZIF structures were analysed using PXRD, TGA, SEM and N<sub>2</sub> physisorption while the % adsorbate uptake and desorption enthalpy was evaluated using TGA and DSC analysis, respectively. Among the studied adsorbent–adsorbate pairs, ZIF-90-water showed the highest desorption enthalpy, the fastest sorption kinetics and, therefore, the best potential for use in heat storage/reallocation applications. This was due to its significantly smaller particle size and higher specific surface area, and the presence of mesoporosity as well as polar groups in ZIF-90 when compared to ZIF-8.Ciara ByrneAlenka RistićSuzana MalMojca OpresnikNataša Zabukovec LogarMDPI AGarticleZIF-8ZIF-90DSCadsorptionTCM materialsCrystallographyQD901-999ENCrystals, Vol 11, Iss 1422, p 1422 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ZIF-8 ZIF-90 DSC adsorption TCM materials Crystallography QD901-999
spellingShingle	ZIF-8 ZIF-90 DSC adsorption TCM materials Crystallography QD901-999 Ciara Byrne Alenka Ristić Suzana Mal Mojca Opresnik Nataša Zabukovec Logar Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
description	The increasing demand for heating/cooling is of grave concern due to the ever-increasing population. One method that addresses this issue and uses renewable energy is Thermochemical Energy Storage (TCES), which is based on the reversible chemical reactions and/or sorption processes of gases in solids or liquids. Zeolitic imidazolate frameworks (ZIFs), composed of transition metal ions (Zn, Co, etc.) and imidazolate linkers, have gained significant interest recently as porous adsorbents in low temperature sorption-based TES (sun/waste heat). In this study, we examined two different sodalite-type ZIF structures (ZIF-8 and ZIF-90) for their potential heat storage applications, based on the adsorption of water, methanol and ethanol as adsorbates. Both ZIF structures were analysed using PXRD, TGA, SEM and N<sub>2</sub> physisorption while the % adsorbate uptake and desorption enthalpy was evaluated using TGA and DSC analysis, respectively. Among the studied adsorbent–adsorbate pairs, ZIF-90-water showed the highest desorption enthalpy, the fastest sorption kinetics and, therefore, the best potential for use in heat storage/reallocation applications. This was due to its significantly smaller particle size and higher specific surface area, and the presence of mesoporosity as well as polar groups in ZIF-90 when compared to ZIF-8.
format	article
author	Ciara Byrne Alenka Ristić Suzana Mal Mojca Opresnik Nataša Zabukovec Logar
author_facet	Ciara Byrne Alenka Ristić Suzana Mal Mojca Opresnik Nataša Zabukovec Logar
author_sort	Ciara Byrne
title	Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
title_short	Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
title_full	Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
title_fullStr	Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
title_full_unstemmed	Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids
title_sort	evaluation of zif-8 and zif-90 as heat storage materials by using water, methanol and ethanol as working fluids
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/da77742016f24709a02a5903694b8391
work_keys_str_mv	AT ciarabyrne evaluationofzif8andzif90asheatstoragematerialsbyusingwatermethanolandethanolasworkingfluids AT alenkaristic evaluationofzif8andzif90asheatstoragematerialsbyusingwatermethanolandethanolasworkingfluids AT suzanamal evaluationofzif8andzif90asheatstoragematerialsbyusingwatermethanolandethanolasworkingfluids AT mojcaopresnik evaluationofzif8andzif90asheatstoragematerialsbyusingwatermethanolandethanolasworkingfluids AT natasazabukoveclogar evaluationofzif8andzif90asheatstoragematerialsbyusingwatermethanolandethanolasworkingfluids
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Evaluation of ZIF-8 and ZIF-90 as Heat Storage Materials by Using Water, Methanol and Ethanol as Working Fluids

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