Super Mg2+ Conductivity around 10-3 S cm-1 Observed in a Porous Metal-Organic Framework
We first report a solid-state crystalline "Mg2+ conductor" showing a superionic conductivity of around 10-3 S cm-1 at ambient temperature, which was obtained using the pores of a metal-organic framework (MOF), MIL-101, as ion-conducting pathways. The MOF, MIL-101⊃{Mg(TFSI)2}1.6 (TFSI- = bis(trifluoromethanesulfonyl)imide), containing Mg2+ inside its pores, showed a superionic conductivity of 1.9 × 10-3 S cm-1 at room temperature (RT) (25 °C) under the optimal guest vapor (MeCN), which is the highest value among all Mg2+-containing crystalline compounds. The Mg2+ conductivity in the MOF was estimated to be 0.8 × 10-3 S cm-1 at RT, by determining the transport number of Mg2+ (tMg2+ = 0.41), which is the level as high as practical use for secondary battery. Measurements of adsorption isotherms, pressure dependence of ionic conductivity, and in situ Fourier transform infrared measurements revealed that the "super Mg2+ conductivity" is caused by the efficient migration of the Mg2+ carrier with the help of adsorbed guest molecules.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:144 |
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| Enthalten in: |
Journal of the American Chemical Society - 144(2022), 19 vom: 18. Mai, Seite 8669-8675 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yoshida, Yuto [VerfasserIn] |
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| Anmerkungen: |
Date Revised 16.07.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/jacs.2c01612 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM340356979 |
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| 100 | 1 | |a Yoshida, Yuto |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Super Mg2+ Conductivity around 10-3 S cm-1 Observed in a Porous Metal-Organic Framework |
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| 500 | |a Date Revised 16.07.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a We first report a solid-state crystalline "Mg2+ conductor" showing a superionic conductivity of around 10-3 S cm-1 at ambient temperature, which was obtained using the pores of a metal-organic framework (MOF), MIL-101, as ion-conducting pathways. The MOF, MIL-101⊃{Mg(TFSI)2}1.6 (TFSI- = bis(trifluoromethanesulfonyl)imide), containing Mg2+ inside its pores, showed a superionic conductivity of 1.9 × 10-3 S cm-1 at room temperature (RT) (25 °C) under the optimal guest vapor (MeCN), which is the highest value among all Mg2+-containing crystalline compounds. The Mg2+ conductivity in the MOF was estimated to be 0.8 × 10-3 S cm-1 at RT, by determining the transport number of Mg2+ (tMg2+ = 0.41), which is the level as high as practical use for secondary battery. Measurements of adsorption isotherms, pressure dependence of ionic conductivity, and in situ Fourier transform infrared measurements revealed that the "super Mg2+ conductivity" is caused by the efficient migration of the Mg2+ carrier with the help of adsorbed guest molecules | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Yamada, Teppei |e verfasserin |4 aut | |
| 700 | 1 | |a Jing, Yuan |e verfasserin |4 aut | |
| 700 | 1 | |a Toyao, Takashi |e verfasserin |4 aut | |
| 700 | 1 | |a Shimizu, Ken-Ichi |e verfasserin |4 aut | |
| 700 | 1 | |a Sadakiyo, Masaaki |e verfasserin |4 aut | |
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| 856 | 4 | 0 | |u http://dx.doi.org/10.1021/jacs.2c01612 |3 Volltext |
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