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Overcoming humidity-induced swelling of graphene oxide-based hydrogen membranes using charge-compensating nanodiamonds
https://repo.qst.go.jp/records/84795
https://repo.qst.go.jp/records/847957db9dbe0-cb8c-4a0d-8193-74b69fa22687
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-10-27 | |||||
| タイトル | ||||||
| タイトル | Overcoming humidity-induced swelling of graphene oxide-based hydrogen membranes using charge-compensating nanodiamonds | |||||
| 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 | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Huang, Guoji
× Huang, Guoji× Ghalei, Behnam× Pournaghshband Isfahani, Ali× Karahan, H.× Terada, Daiki× Qin, Detao× Li, Conger× Tsujimoto, Masahiko× Yamaguchi, Daisuke× Kunihisa Sugimoto× Igarashi, Ryuji× Bor Kae Chang× Li, Tao× Shirakawa, Masahiro× Sivaniah, Easan× Daiki, Terada× Ryuji, Igarashi× Masahiro, Shirakawa |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Graphene oxide (GO) can form ultrapermeable and ultraselective membranes that are promising for various gas separation applications, including hydrogen purification. However, GO films lose their attractive separation properties in humid conditions. Here we show that incorporating positively charged nanodiamonds (ND+s) into GO nanolaminates leads to humidity-resistant, yet high-performing, membranes. While native GO membranes fail at a single run, the GO/ND+ composite retains up to ~90% of GO’s H2 selectivity against CO2 after several cycles under an aggressive humidity test. The addition of negatively charged ND to GO brought no such stabilization, suggesting that charge compensation acts as the main mechanism conferring humidity resistance, where ND+s neutralize the negative charge GO sheets. We observed a similar but inferior stabilization effect when positively charged polyhedral oligomeric silsesquioxane replaces ND+. The demonstrated material platform offers a solution for separating H2 gas from its usually humid mixtures generated from fossil fuel sources or water splitting. | |||||
| 書誌情報 |
Nature Energy 巻 6, p. 1176-1187, 発行日 2021-12 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2058-7546 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41560-021-00946-y | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s41560-021-00946-y | |||||
