ID | 66562 |
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Author |
Mizutani, Yuna
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
Watanabe, Takaichi
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
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Lopez, Carlos G.
Department of Materials Science and Engineering, The Pennsylvania State University
Ono, Tsutomu
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
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Abstract | Ionic–liquid gels, also known as ion gels, have gained considerable attention due to their high ionic conductivity and CO2 absorption capacity. However, their low mechanical strength has hindered their practical applications. A potential solution to this challenge is the incorporation of particles, such as silica nanoparticles, TiO2 nanoparticles, and metal–organic frameworks (MOFs) into ion gels. Comparative studies on the effect of particles with different shapes are still in progress. This study investigated the effect of the shape of particles introduced into ion gels on their mechanical properties. Consequently, alumina/poly(ionic liquid) (PIL) double-network (DN) ion gels consisting of clustered alumina nanoparticles with various shapes (either spherical or rod-shaped) and a chemically crosslinked poly[1-ethyl-3-vinylimidazolium bis(trifluoromethanesulfonyl)imide] (PC2im-TFSI, PIL) network were prepared. The results revealed that the mechanical strengths of the alumina/PIL DN ion gels were superior to those of PIL single-network ion gels without particles. Notably, the fracture energies of the rod-shaped alumina/PIL DN ion gels were approximately 2.6 times higher than those of the spherical alumina/PIL DN ion gels. Cyclic tensile tests were performed, and the results indicate that the loading energy on the ion gel was dissipated through the fracture of the alumina network. TEM observation suggests that the variation in the mechanical strength depending on the shape can be attributed to differences in the aggregation structure of the alumina particles, thus indicating the possibility of tuning the mechanical strength of ion gels by altering not only particle kinds but its shape.
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Published Date | 2024-01-18
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Publication Title |
Soft Matter
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Volume | volume20
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Issue | issue7
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Publisher | Royal Society of Chemistry (RSC)
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Start Page | 1611
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End Page | 1619
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ISSN | 1744-683X
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NCID | AA12068335
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © The Royal Society of Chemistry 2024
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File Version | publisher
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PubMed ID | |
DOI | |
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Related Url | isVersionOf https://doi.org/10.1039/d3sm01626a
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License | http://creativecommons.org/licenses/by/3.0/
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Funder Name |
Japan Society for the Promotion of Science
New Energy and Industrial Technology Development Organization (NEDO)
Okayama University
TOKUYAMA SCIENCE FOUNDATION
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助成番号 | JP20KK0325
JP21H04629
JPNP20004
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