WEKO3
アイテム
Mesoscopic Architectures Made of Electrically Charged Binary Colloidal Nanosheets in Aqueous System
http://hdl.handle.net/10228/00008056
http://hdl.handle.net/10228/0000805613655fe5-0533-4c66-b4f0-bc76032f5e68
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
10349594.pdf (3.2 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||||||
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| 公開日 | 2021-03-10 | |||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Mesoscopic Architectures Made of Electrically Charged Binary Colloidal Nanosheets in Aqueous System | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
| 著者 |
中戸, 晃之
× 中戸, 晃之
WEKO
28679
× Takahashi, Atsushi× Terada, Shinya× Yamaguchi, Shogo× 毛利, 恵美子
WEKO
14134
× Shintate, Morio× Yamamoto, Shinya× Yamauchi, Yusuke× Miyamoto, Nobuyoshi |
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| 抄録 | ||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | Inorganic layered materials can be converted to colloidal liquid crystals through exfoliation into inorganic nanosheets, and binary nanosheet colloids exhibit rich phase behavior characterized by multiphase coexistence. In particular, niobate–clay binary nanosheet colloids are characterized by phase separation at a mesoscopic (∼several tens of micrometers) scale whereas they are apparently homogeneous at a macroscopic scale. Although the mesoscopic structure of the niobate–clay binary colloid is advantageous to realize unusual photochemical functions, the structure itself has not been clearly demonstrated in real space. The present study investigated the structure of niobate–clay binary nanosheet colloids in detail. Four clay nanosheets (hectorite, saponite, fluorohectorite, and tetrasilisic mica) with different lateral sizes were compared. Small-angle X-ray scattering (SAXS) indicated lamellar ordering of niobate nanosheets in the binary colloid. The basal spacing of the lamellar phase was reduced by increasing the concentration of clay nanosheets, indicating the compression of the liquid crystalline niobate phase by the isotropic clay phase. Scattering and fluorescence microscope observations using confocal laser scanning microscopy (CLSM) demonstrated the phase separation of niobate and clay nanosheets in real space. Niobate nanosheets assembled into domains of several tens of micrometers whereas clay nanosheets were located in voids between the niobate domains. The results clearly confirmed the spatial separation of two nanosheets and the phase separation at a mesoscopic scale. Distribution of clay nanosheets is dependent on the employed clay nanosheets; the nanosheets with large lateral length are more localized or assembled. This is in harmony with larger basal spacings of niobate lamellar phase for large clay particles. Although three-dimensional compression of the niobate phase by the coexisting clay phase was observed at low clay concentrations, the basal spacing of niobate phase was almost constant irrespective of niobate concentrations at high clay concentrations, which was ascribed to competition of compression by clay phase and restoring of the niobate phase. | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 書誌情報 |
Langmuir 巻 35, 号 45, p. 14543-14552, 発行日 2019-10-22 |
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| 出版社 | ||||||||||||||||||||||
| 出版者 | American Chemical Society | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1021/acs.langmuir.9b02474 | |||||||||||||||||||||
| 日本十進分類法 | ||||||||||||||||||||||
| 主題Scheme | NDC | |||||||||||||||||||||
| 主題 | 431 | |||||||||||||||||||||
| NCID | ||||||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||||||
| 収録物識別子 | AA10461730 | |||||||||||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||||||||||
| 収録物識別子 | 0743-7463 | |||||||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||||||
| 収録物識別子 | 1520-5827 | |||||||||||||||||||||
| 著作権関連情報 | ||||||||||||||||||||||
| 権利情報 | Copyright (c) 2019 American Chemical Society. This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Langmuir, copyright © American Chemical Society after peer review. To access the final edited and published work, see https://pubs.acs.org/doi/abs/10.1021/acs.langmuir.9b02474. | |||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||
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| 値 | yes | |||||||||||||||||||||
| 研究者情報 | ||||||||||||||||||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/100000325_ja.html | |||||||||||||||||||||
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| 値 | 10349594 | |||||||||||||||||||||
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| 値 | 8564 | |||||||||||||||||||||
