| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-11-27 |
| タイトル |
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|
タイトル |
Changes in the wettability of the surface of soda-lime glass and of sol-gel-derived lithium silicate thin films during storage at room temperature |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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|
アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
幸塚, 広光
宮尾, 悠太
加藤, 知顕
三木, 愛斗
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| 概要 |
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内容記述タイプ |
Other |
|
内容記述 |
Maintaining the water wettability for extended period is generally tough to achieve on solid surface. We stored a soda-lime glass plate in a container equipped with an air purifier with a fan filter, where the water contact angle increased from 3° to 33° in 2 days. X-ray photoelectron spectroscopic (XPS) spectra obtained on the glass surface showed that hydrocarbons increased in amount during storage, indicating their adsorption as one of the causes of the increased contact angle during storing. Next we prepared lithium silicate thin films with nominal Li/Si mole ratios of 0.12–0.86 on Si(100) wafers by sol-gel method from lithium nitrate-tetraethyl orthosilicate solutions. The films were stored in the container with the air purifier, and the water contact angle was measured as a function of storage time. The films of Li/Si ≥ 0.24 kept contact angles lower than 15° over 10 days although hydrocarbons increased in amount on the surface during storage, which was examined by XPS analysis on the film of Li/Si = 0.24. The film surface turned cloudy during storage, which we attributed to lithium carbonate precipitates by field emission scanning electron microscopy (FE-SEM) and infrared (IR) absorption spectroscopy. We thought that hydrocarbons adsorbed on lithium carbonate precipitates may be washed out when a water droplet is placed on the film surface in contact angle measurements, and that such hydrocarbon removal may lead to the long-term duration of the low contact angle. Elemental depth profile analysis by XPS showed that Li+ ions leach out from the film during soaking in water, resulting in the formation of a silica film. We expected the resulting silica film to be porous and hence to exhibit persistent low water contact angle due to capillary effect. However, the film showed higher initial contact angles, which further increased during storing. The silica film was unexpectedly relatively dense, which was revealed by refractive index measurements, not having porous nature with persistent hydrophilicity. |
|
言語 |
en |
| 書誌情報 |
en : Journal of Sol-Gel Science and Technology
巻 116,
号 1,
p. 694-705,
発行日 2024-08-31
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| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0928-0707 |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1573-4846 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11020650 |
| DOI |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1007/s10971-024-06523-5 |
| 権利 |
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|
権利情報 |
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s10971-024-06523-5 |
|
言語 |
en |
| 著者版フラグ |
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|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
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出版者 |
Springer Nature |
|
言語 |
en |
| 助成情報 |
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助成機関名 |
Japan Society for the Promotion of Science (JSPS) |
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|
言語 |
en |
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研究課題番号 |
21H02030 |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/search/?kw=21H02030 |
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研究課題名 |
水の低い接触角を長期間維持する薄膜材料の創成 |
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言語 |
ja |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
|
主題 |
Wettability |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Contact angle |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Soda-lime glass |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Lithium silicate thin film |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ion-excahnge |
| キーワード |
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|
言語 |
ja |
|
主題Scheme |
Other |
|
主題 |
関西大学 |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Kansai University |
KU-1100-20240831-01.pdf (1.3 MB)
