A Comparative Study of Proton Conduction Between a 2D Zinc(II) MOF and Its Corresponding Organic Ligand
Until now, comparative studies on proton conductivity between organic ligands and related metal-organic frameworks (MOFs) have been very limited. Herein, a stable 2D Zn(II) MOF, [Zn(L)Cl]n (1), has been successfully synthesized by using a zwitterionic-type organic ligand, 2-(1-(carboxymethyl)-1H-benzo[d]imidazol-3-ium-3-yl)acetate (HL). It is found that there are a large amount of free carboxyl groups and hydrogen bonds in the solid-state structure of HL, and a large number of chlorine ions are aligned in the channels of 1, which is favorable to the efficient proton transfer. Correspondingly, the proton conductivity values of 1 and HL are almost of the same order of magnitude under the same conditions. Moreover, the optimal σ value of 1 (4.72 × 10-3 S/cm at 100 °C and 98% relative humidity) is almost four times higher than that (1.36 × 10-3 S/cm) of the HL ligand. On the basis of the crystal data, SEM images, and calculated Ea values, we discuss the differences on proton conductivities and conduction mechanisms of 1 and HL. This report provides an inspiration for the preparation of highly conductive materials with free carboxyl groups and chloride ions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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| Enthalten in: |
Inorganic chemistry - 59(2020), 7 vom: 06. Apr., Seite 4781-4789 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Shi, Zhi-Qiang [VerfasserIn] |
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| Anmerkungen: |
Date Revised 07.04.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.inorgchem.0c00053 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM307364062 |
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| 100 | 1 | |a Shi, Zhi-Qiang |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A Comparative Study of Proton Conduction Between a 2D Zinc(II) MOF and Its Corresponding Organic Ligand |
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| 500 | |a Date Revised 07.04.2020 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Until now, comparative studies on proton conductivity between organic ligands and related metal-organic frameworks (MOFs) have been very limited. Herein, a stable 2D Zn(II) MOF, [Zn(L)Cl]n (1), has been successfully synthesized by using a zwitterionic-type organic ligand, 2-(1-(carboxymethyl)-1H-benzo[d]imidazol-3-ium-3-yl)acetate (HL). It is found that there are a large amount of free carboxyl groups and hydrogen bonds in the solid-state structure of HL, and a large number of chlorine ions are aligned in the channels of 1, which is favorable to the efficient proton transfer. Correspondingly, the proton conductivity values of 1 and HL are almost of the same order of magnitude under the same conditions. Moreover, the optimal σ value of 1 (4.72 × 10-3 S/cm at 100 °C and 98% relative humidity) is almost four times higher than that (1.36 × 10-3 S/cm) of the HL ligand. On the basis of the crystal data, SEM images, and calculated Ea values, we discuss the differences on proton conductivities and conduction mechanisms of 1 and HL. This report provides an inspiration for the preparation of highly conductive materials with free carboxyl groups and chloride ions | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Ji, Ning-Ning |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Ming-Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Gang |e verfasserin |4 aut | |
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