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Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing

[Image: see text] Nanocellulose is regarded as a green and renewable nanomaterial that has attracted increased attention. In this study, we demonstrate that nanocellulose materials can exhibit high thermal conductivity when their nanofibrils are highly aligned and bonded in the form of filaments. Th...

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Autores principales: Wang, Guantong, Kudo, Masaki, Daicho, Kazuho, Harish, Sivasankaran, Xu, Bin, Shao, Cheng, Lee, Yaerim, Liao, Yuxuan, Matsushima, Naoto, Kodama, Takashi, Lundell, Fredrik, Söderberg, L. Daniel, Saito, Tsuguyuki, Shiomi, Junichiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9650782/
https://www.ncbi.nlm.nih.gov/pubmed/36283691
http://dx.doi.org/10.1021/acs.nanolett.2c02057
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author Wang, Guantong
Kudo, Masaki
Daicho, Kazuho
Harish, Sivasankaran
Xu, Bin
Shao, Cheng
Lee, Yaerim
Liao, Yuxuan
Matsushima, Naoto
Kodama, Takashi
Lundell, Fredrik
Söderberg, L. Daniel
Saito, Tsuguyuki
Shiomi, Junichiro
author_facet Wang, Guantong
Kudo, Masaki
Daicho, Kazuho
Harish, Sivasankaran
Xu, Bin
Shao, Cheng
Lee, Yaerim
Liao, Yuxuan
Matsushima, Naoto
Kodama, Takashi
Lundell, Fredrik
Söderberg, L. Daniel
Saito, Tsuguyuki
Shiomi, Junichiro
author_sort Wang, Guantong
collection PubMed
description [Image: see text] Nanocellulose is regarded as a green and renewable nanomaterial that has attracted increased attention. In this study, we demonstrate that nanocellulose materials can exhibit high thermal conductivity when their nanofibrils are highly aligned and bonded in the form of filaments. The thermal conductivity of individual filaments, consisting of highly aligned cellulose nanofibrils, fabricated by the flow-focusing method is measured in dried condition using a T-type measurement technique. The maximum thermal conductivity of the nanocellulose filaments obtained is 14.5 W/m-K, which is approximately five times higher than those of cellulose nanopaper and cellulose nanocrystals. Structural investigations suggest that the crystallinity of the filament remarkably influence their thermal conductivity. Smaller diameter filaments with higher crystallinity, that is, more internanofibril hydrogen bonds and less intrananofibril disorder, tend to have higher thermal conductivity. Temperature-dependence measurements also reveal that the filaments exhibit phonon transport at effective dimension between 2D and 3D.
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spelling pubmed-96507822022-11-15 Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing Wang, Guantong Kudo, Masaki Daicho, Kazuho Harish, Sivasankaran Xu, Bin Shao, Cheng Lee, Yaerim Liao, Yuxuan Matsushima, Naoto Kodama, Takashi Lundell, Fredrik Söderberg, L. Daniel Saito, Tsuguyuki Shiomi, Junichiro Nano Lett [Image: see text] Nanocellulose is regarded as a green and renewable nanomaterial that has attracted increased attention. In this study, we demonstrate that nanocellulose materials can exhibit high thermal conductivity when their nanofibrils are highly aligned and bonded in the form of filaments. The thermal conductivity of individual filaments, consisting of highly aligned cellulose nanofibrils, fabricated by the flow-focusing method is measured in dried condition using a T-type measurement technique. The maximum thermal conductivity of the nanocellulose filaments obtained is 14.5 W/m-K, which is approximately five times higher than those of cellulose nanopaper and cellulose nanocrystals. Structural investigations suggest that the crystallinity of the filament remarkably influence their thermal conductivity. Smaller diameter filaments with higher crystallinity, that is, more internanofibril hydrogen bonds and less intrananofibril disorder, tend to have higher thermal conductivity. Temperature-dependence measurements also reveal that the filaments exhibit phonon transport at effective dimension between 2D and 3D. American Chemical Society 2022-10-25 2022-11-09 /pmc/articles/PMC9650782/ /pubmed/36283691 http://dx.doi.org/10.1021/acs.nanolett.2c02057 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Wang, Guantong
Kudo, Masaki
Daicho, Kazuho
Harish, Sivasankaran
Xu, Bin
Shao, Cheng
Lee, Yaerim
Liao, Yuxuan
Matsushima, Naoto
Kodama, Takashi
Lundell, Fredrik
Söderberg, L. Daniel
Saito, Tsuguyuki
Shiomi, Junichiro
Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title_full Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title_fullStr Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title_full_unstemmed Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title_short Enhanced High Thermal Conductivity Cellulose Filaments via Hydrodynamic Focusing
title_sort enhanced high thermal conductivity cellulose filaments via hydrodynamic focusing
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9650782/
https://www.ncbi.nlm.nih.gov/pubmed/36283691
http://dx.doi.org/10.1021/acs.nanolett.2c02057
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