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Synthesis and gas permeation properties of chabazite-type titanosilicate membranes synthesized using nano-sized seed crystals
http://hdl.handle.net/10112/00017644
http://hdl.handle.net/10112/000176443fff895a-6c5c-4cb3-990f-264f6f35f514
名前 / ファイル | ライセンス | アクション |
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KU-0020-20190000-01.pdf (1.2 MB)
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Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2022-01-15 | |||||
タイトル | ||||||
タイトル | Synthesis and gas permeation properties of chabazite-type titanosilicate membranes synthesized using nano-sized seed crystals | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
著者 |
Araki, Sadao
× Araki, Sadao× Ishii, Hiroyasu× Imasaka, Satoshi× 山本, 秀樹 |
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著者別名 | ||||||
姓名 | 荒木, 貞夫 | |||||
著者別名 | ||||||
姓名 | 今坂, 怜史 | |||||
著者別名 | ||||||
姓名 | 山本, 秀樹 | |||||
概要 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chabazite (CHA)-type zeolite membranes have received considerable attention regarding their high permeance and separation performance. A recent report detailing a unique preparation procedure for a CHA-type titanosilicate (Ti-CHA) zeolite—in which titanium heteroatoms were incorporated into the zeolite framework by substitution of aluminum—demonstrates excellent physico-chemical properties when compared with conventional aluminosilicate CHA-type zeolites. In this study, the synthesis of Ti-CHA zeolite membranes (Ti-CHA membrane) was investigated. The Ti-CHA membrane was synthesized on an alumina support via a secondary growth method using Ti-CHA zeolite seed crystals. The Ti-CHA membrane properties were studied as a function of seed crystal size. The average particle diameter was observed to reduce from 2.3 μm to 450 nm by increasing the loading of Ti-CHA into the synthesis gel. Regardless of the seed crystal particle size, the presence of CHA-type zeolites on the alumina support was confirmed by x-ray diffraction. UV-Vis demonstrated the incorporation of titanium heteroatoms into the zeolite framework. The results indicated the successful synthesis of the Ti-CHA membrane regardless of the seed crystal particle size. Additionally, the membrane thickness decreased by using the seed crystal. Single gas permeation tests showed that the thinnest Ti-CHA membrane prepared in this study exhibited a relatively high CO2 permeance of 1.5×10−6 mol m−2 s−1 Pa−1, compared with that of previously reported CHA-type zeolite membranes. The influence of moisture on the separation performance of the Ti-CHA membrane was evaluated in the presence of gas mixtures composed of CO2, methane and H2O ranging from 0.1 to 5 vol.%. In the presence of 1 vol.% H2O, the CO2 permeance and selectivity were only marginally reduced as a result of the highly hydrophobic pore structure. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | This work was partially supported by Kansai University Fund for Supporting Young Scholars, 2018. | |||||
書誌情報 |
Microporous and Mesoporous Materials 巻 292, 発行日 2020-01-15 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13871811 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11160707 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.micromeso.2019.109798 | |||||
権利 | ||||||
権利情報 | © 2020. Licensed under the Creative Commons http://creativecommons.org/licenses/by-nc-nd/4.0/. | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Titanosilicate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | chabazite-type zeolite | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | zeolite membrane | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CO2 separation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 関西大学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Kansai University | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 関西大学若手研究者育成経費 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Elsevier |