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Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks

[Image: see text] The ability to control thermal transport is critical for the design of thermal rectifiers, logic gates, and transistors, although it remains a challenge to design materials that exhibit large changes in thermal conductivity with switching ratios suitable for practical applications....

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Autores principales: Babaei, Hasan, Meihaus, Katie R., Long, Jeffrey R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10449012/
https://www.ncbi.nlm.nih.gov/pubmed/37637009
http://dx.doi.org/10.1021/acs.chemmater.3c00496
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author Babaei, Hasan
Meihaus, Katie R.
Long, Jeffrey R.
author_facet Babaei, Hasan
Meihaus, Katie R.
Long, Jeffrey R.
author_sort Babaei, Hasan
collection PubMed
description [Image: see text] The ability to control thermal transport is critical for the design of thermal rectifiers, logic gates, and transistors, although it remains a challenge to design materials that exhibit large changes in thermal conductivity with switching ratios suitable for practical applications. Here, we propose the use of flexible metal–organic frameworks, which can undergo significant structural changes in response to various stimuli, to achieve tunable switchable thermal conductivity. In particular, we use molecular dynamics simulations to show that the thermal conductivity of the flexible framework Fe(bdp) (bdp(2–) = 1,4-benzenedipyrazolate) becomes highly anisotropic upon transitioning from the expanded to the collapsed phase, with the conductivity decreasing by nearly an order of magnitude along the direction of compression. Our results add to a small but growing number of studies investigating metal–organic frameworks for thermal transport.
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spelling pubmed-104490122023-08-25 Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks Babaei, Hasan Meihaus, Katie R. Long, Jeffrey R. Chem Mater [Image: see text] The ability to control thermal transport is critical for the design of thermal rectifiers, logic gates, and transistors, although it remains a challenge to design materials that exhibit large changes in thermal conductivity with switching ratios suitable for practical applications. Here, we propose the use of flexible metal–organic frameworks, which can undergo significant structural changes in response to various stimuli, to achieve tunable switchable thermal conductivity. In particular, we use molecular dynamics simulations to show that the thermal conductivity of the flexible framework Fe(bdp) (bdp(2–) = 1,4-benzenedipyrazolate) becomes highly anisotropic upon transitioning from the expanded to the collapsed phase, with the conductivity decreasing by nearly an order of magnitude along the direction of compression. Our results add to a small but growing number of studies investigating metal–organic frameworks for thermal transport. American Chemical Society 2023-08-02 /pmc/articles/PMC10449012/ /pubmed/37637009 http://dx.doi.org/10.1021/acs.chemmater.3c00496 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Babaei, Hasan
Meihaus, Katie R.
Long, Jeffrey R.
Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title_full Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title_fullStr Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title_full_unstemmed Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title_short Reversible Thermal Conductivity Switching Using Flexible Metal–Organic Frameworks
title_sort reversible thermal conductivity switching using flexible metal–organic frameworks
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10449012/
https://www.ncbi.nlm.nih.gov/pubmed/37637009
http://dx.doi.org/10.1021/acs.chemmater.3c00496
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