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メソポーラスシリカ細孔中の水 : 電解質系の結晶化・融解挙動
https://kokushikan.repo.nii.ac.jp/records/13432
https://kokushikan.repo.nii.ac.jp/records/134323dacfa83-780f-41f8-9ebc-fa03b1814fe2
名前 / ファイル | ライセンス | アクション |
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本文 (1.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-11-01 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | メソポーラスシリカ細孔中の水 : 電解質系の結晶化・融解挙動 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Freezing/ Melting Behavior of Water-Electrolyte Binary Systems Confined within Mesoporous Silica Pores | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
関連タイトル | ||||||
理工学部発足10周年記念号 | ||||||
見出し | ||||||
大見出し | 論文 | |||||
言語 | ja | |||||
見出し | ||||||
大見出し | Original Paper | |||||
言語 | en | |||||
著者 |
西岡, 義仁
× 西岡, 義仁× 吉見, 岳久× 名越, 篤史× 本波, 裕美× 清田, 馨× 柳川, 昭久× 藤森, 裕基 |
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内容記述タイプ | Other | |||||
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内容記述タイプ | Other | |||||
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内容記述タイプ | Other | |||||
内容記述 | J-GLOBAL : 201601009905744233 | |||||
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内容記述タイプ | Other | |||||
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内容記述タイプ | Other | |||||
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内容記述タイプ | Other | |||||
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内容記述タイプ | Other | |||||
内容記述 | J-GLOBAL : 200901033436776040 | |||||
著作関係者詳細 | ||||||
西岡 義仁 : 日本大学大学院総合基礎科学研究科相関理化学専攻 理学修士 柳川 昭久 : 日本大学文理学部非常勤講師 工学博士 藤森 裕基 : 日本大学文理学部化学科教授 理学博士 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Freezing/melting behavior of water in water-electrolyte binary solutions confined within mesoporous silica pores was investigated by differential scanning calorimetry DSC measurements. Fusion temperature Tfus of water in confined solutions decreased linearly with decrease of the logarithm of molar fraction of water in the solution ln (x_{water}), which is a typical behavior of freezing point depression. Molar entropy of fusion for the pore water Δ_{fus}S_{m,pore} was derived from the slope of the linearity, and was compared with entropy difference between those of bulk solid and bulk liquid Δ_{s-l}S_{m,nulk}. We found that pore walls do not affect structural features of water locating in an internal part of the pore through a formation of a non-freezing molecular layer locating on an interfacial part of the pore. メソポーラスシリカ細孔中に封じた電解質水溶液中の水の結晶化・融解挙動を示差走査熱量計(DSC)によって調査した。細孔内の水溶液中の氷の融点は,水のモル分率の対数ln(x_{water})の低下に対し,ほぼ直線的に低下し,理想的な凝固点降下挙動を示した。その傾きからモル融解エントロピーΔ_{fus}S_{m,pore}を導出した。また,バルクにおける固相-液相間のエントロピー差Δ_{s-l}S_{m,nulk}と比較し,細孔に封じたことによる液体相への熱力学的影響を明らかにすることを試みた。その結果,細孔内の水は,界面に界面水層を形成することで,内部の水に細孔壁の影響を及ぼさないことがわかった。 |
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書誌情報 |
国士舘大学理工学部紀要 en : TRANSACTIONS OF THE KOKUSHIKAN UNIVERSITY SCHOOL OF SCIENCE AND ENGINEERING 巻 11, p. 91-96, 発行日 2017-11-30 |
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出版者 | 国士舘大学理工学部 | |||||
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収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1882-4013 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12316266 | |||||
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関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 40021625282 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 428 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 435.44 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 426.4 | |||||
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内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
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出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
キーワード | ||||||
主題 | Phase transition, interfacial free energy, water, freezing-point depression, mesoscopic systems |