研究業績

Title: Confined Water-Mediated High Proton Conduction in Hydrophobic Channel of a Synthetic Nanotube   Authors: K. Otake, K. Otsubo, T. Komatsu, S. Dekura, J. Taylor, R. Ikeda, K. Sugimoto, A. Fujiwara, C.–P. Chou, A. W. Sakti, Y. Nishimura, H. Nakai, H. Kitagawa   Abstract: Water confined within one-dimensional (1D) hydrophobic nanochannels has attracted significant interest due to its unusual structure and dynamic properties. As a representative system, water-filled carbon nanotubes (CNTs) are generally studied, but direct observation of the crystal structure and proton transport is difficult for CNTs due to their poor crystallinity and high electron conduction. Here, we report the direct observation of a unique watercluster structure and high proton conduction realized in a metal-organic nanotube, [Pt(dach)(bpy)Br]4(SO4)4·32H2O (dach: (1R, 2R)-(–)-1,2-diaminocyclohexane; bpy: 4,4’-bipyridine). In the crystalline state, a hydrogen-bonded ice nanotube composed of water tetramers and octamers is found within the hydrophobic nanochannel. Single-crystal impedance measurements along the channel direction reveal a high proton conduction of 10−2 Scm−1. Moreover, fast proton diffusion and continuous liquid-to-solid transition are confirmed using solid-state 1H-NMR measurements. Our study provides valuable insight into the structural and dynamical properties of confined water within 1D hydrophobic nanochannels.   Link (OPEN ACCESS): Nat. Commun. 11 (2020) 843. DOI: 10.1038/s41467-020-14627-z

2020.02.18.Tue

Title: Confined Water-Mediated High Proton Conduction in Hydr…
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2020.02.14.Fri

Title: Solution processed In-Si-O thin film transistors on hyd…
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2020.02.01.Sat

Title: Improving grazing-incidence small-angle X-ray scatteri…
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2019.09.30.Mon

Title: Photo-oxidation of an organosulfur for photo-charging …
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2019.09.30.Mon

Title: Silicon-doped indium oxide – a promising amorphous oxi…
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2019.05.14.Tue

Title: Structural Alternation Correlated to the Conductivity …
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2019.05.03.Fri

Title: Fabrication of flexible high-performance organic field…
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2018.10.31.Wed

Authors: H. Hoang, T. Hori, T. Yasuda, T. Kizu, K. Tsukagoshi,…
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2018.08.16.Thu

Authors: H. Hoang, T. Hori, T. Yasuda, T. Kizu, K. Tsukagoshi,…
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2018.08.08.Wed

Authors: H.Q. Nguyen, D.V. Nguyen, A. Fujiwara, Bui N.Q. Trinh…
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