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New insights into the heat of adsorption of water, acetonitrile, and n-hexane in porous carbon with oxygen functional groups
http://hdl.handle.net/10069/39280
http://hdl.handle.net/10069/39280dcdae1b7-0fd9-4466-a402-d18e7f4253eb
名前 / ファイル | ライセンス | アクション |
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JCIS552_412.pdf (848.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-07-02 | |||||
タイトル | ||||||
タイトル | New insights into the heat of adsorption of water, acetonitrile, and n-hexane in porous carbon with oxygen functional groups | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Acetonitrile adsorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Hexane adsorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Isosteric heat of adsorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Porous carbon | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Temperature-programmed desorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Water adsorption | |||||
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 | |||||
著者 |
Urita, Chiharu
× Urita, Chiharu× Urita, Koki× Araki, Takuya× Horio, Keiji× Yoshida, Masayuki× Moriguchi, Isamu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Isosteric heat of adsorption is exquisitely sensitive to structural changes in carbon surfaces based on the energetic behavior of the interactions between adsorbates and carbon materials. We discuss the relationships between porous structures, oxygen functional groups, and heat of adsorption based on the behavior of the heat of adsorption of polar and non-polar fluids on porous carbon materials with oxygen functional groups. The porosity and functional groups of porous carbon materials were estimated from N2 adsorption isotherms at 77 K and temperature-programmed desorption. High-resolution adsorption isotherms of water, acetonitrile (polar fluid), and n-hexane (non-polar fluid) were measured on porous carbon materials with different pore size distributions and amounts of oxygen functional groups at various temperatures. The heats of adsorption were determined by applying the Clausius-Clapeyron equation to the adsorption isotherms. The heat of adsorption curves directly reflect the effects of interactions of fluid-oxygen functional groups,fluid-basal planes of pore walls, and fluid-fluid interfaces. In particular, the heat of adsorption curve of water is very sensitive to surface oxygen functional groups. This finding indicates the possibility of estimating the relative amounts of oxygen functional groups on porous carbon materials based on the amounts of water adsorbed at specific relative pressures. |
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書誌情報 |
Journal of Colloid and Interface Science 巻 552, p. 412-417, 発行日 2019-05-27 |
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出版者 | ||||||
出版者 | Elsevier Inc. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00219797 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jcis.2019.05.090 | |||||
権利 | ||||||
権利情報 | c 2019 Elsevier Inc. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of Colloid and Interface Science, 552, pp.412-417; 2019 |