Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator
This study successfully prepared a hierarchically porous ZIF-67 (H-ZIF-67) by incorporating the polyvinylpyrrolidone (PVP) at room temperature. Compared to standard control ZIF-67 (C-ZIF-67) with a yield of 81% and a BET specific surface area of 1228 m<sup>2</sup>·g<sup>−1</sup&...
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2024-10-01
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| author | Tian Zhao Jiangrong Yu Pengcheng Xiao Saiqun Nie Shilin Peng Jiayao Chen Fuli Luo Christoph Janiak Yi Chen |
| author_facet | Tian Zhao Jiangrong Yu Pengcheng Xiao Saiqun Nie Shilin Peng Jiayao Chen Fuli Luo Christoph Janiak Yi Chen |
| author_sort | Tian Zhao |
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| description | This study successfully prepared a hierarchically porous ZIF-67 (H-ZIF-67) by incorporating the polyvinylpyrrolidone (PVP) at room temperature. Compared to standard control ZIF-67 (C-ZIF-67) with a yield of 81% and a BET specific surface area of 1228 m<sup>2</sup>·g<sup>−1</sup>, the H-ZIF-67 not only exhibited improved crystallinity and pore structure but also achieved a yield of up to 93% and a BET specific surface area of 1457 m<sup>2</sup>·g<sup>−1</sup>. Due to its hierarchically porous structure, H-ZIF-67 demonstrated excellent adsorption capacity and efficiency for methylene orange (MO). Additionally, the composite separator created by combining H-ZIF-67 with nanocellulose (CNF) exhibited remarkable uniformity and dispersion in zinc batteries. In comparison to a conventional CNF separator, the porous structure and high specific surface area of H-ZIF-67 significantly enhanced its electrolyte wettability and Zn<sup>2+</sup> transport rates. Its abundant Lewis acid sites effectively promoted the uniform deposition of Zn<sup>2+</sup>, thereby suppressing the formation of zinc dendrites and improving the cycling and safety performance of zinc-ion batteries. Experimental results indicate that the ion conductivity of the membrane was 4.31 mS·cm<sup>−1</sup>, the electrolyte absorption rate was 316%, and it could cycle stable for over 4000 h at a current density of 1 mA·cm<sup>−2</sup> with a discharge capacity of 1 mAh·cm<sup>−2</sup>. This achievement will open up new avenues for the preparation and application of ZIF-67 composite separators in aqueous zinc-ion batteries. |
| format | Article |
| id | doaj-art-7dd96475aeb24f9a8023057a431b06f8 |
| institution | Kabale University |
| issn | 2624-8549 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
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| series | Chemistry |
| spelling | doaj-art-7dd96475aeb24f9a8023057a431b06f82024-12-27T14:16:57ZengMDPI AGChemistry2624-85492024-10-01661363137310.3390/chemistry6060080Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery SeparatorTian Zhao0Jiangrong Yu1Pengcheng Xiao2Saiqun Nie3Shilin Peng4Jiayao Chen5Fuli Luo6Christoph Janiak7Yi Chen8School of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaInstitut für Anorganische Chemie und Strukturchemie, Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, GermanySchool of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaThis study successfully prepared a hierarchically porous ZIF-67 (H-ZIF-67) by incorporating the polyvinylpyrrolidone (PVP) at room temperature. Compared to standard control ZIF-67 (C-ZIF-67) with a yield of 81% and a BET specific surface area of 1228 m<sup>2</sup>·g<sup>−1</sup>, the H-ZIF-67 not only exhibited improved crystallinity and pore structure but also achieved a yield of up to 93% and a BET specific surface area of 1457 m<sup>2</sup>·g<sup>−1</sup>. Due to its hierarchically porous structure, H-ZIF-67 demonstrated excellent adsorption capacity and efficiency for methylene orange (MO). Additionally, the composite separator created by combining H-ZIF-67 with nanocellulose (CNF) exhibited remarkable uniformity and dispersion in zinc batteries. In comparison to a conventional CNF separator, the porous structure and high specific surface area of H-ZIF-67 significantly enhanced its electrolyte wettability and Zn<sup>2+</sup> transport rates. Its abundant Lewis acid sites effectively promoted the uniform deposition of Zn<sup>2+</sup>, thereby suppressing the formation of zinc dendrites and improving the cycling and safety performance of zinc-ion batteries. Experimental results indicate that the ion conductivity of the membrane was 4.31 mS·cm<sup>−1</sup>, the electrolyte absorption rate was 316%, and it could cycle stable for over 4000 h at a current density of 1 mA·cm<sup>−2</sup> with a discharge capacity of 1 mAh·cm<sup>−2</sup>. This achievement will open up new avenues for the preparation and application of ZIF-67 composite separators in aqueous zinc-ion batteries.https://www.mdpi.com/2624-8549/6/6/80ZIF-67battery separatorzinc-ion battery |
| spellingShingle | Tian Zhao Jiangrong Yu Pengcheng Xiao Saiqun Nie Shilin Peng Jiayao Chen Fuli Luo Christoph Janiak Yi Chen Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator Chemistry ZIF-67 battery separator zinc-ion battery |
| title | Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator |
| title_full | Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator |
| title_fullStr | Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator |
| title_full_unstemmed | Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator |
| title_short | Preparation of Hierarchical Porous ZIF-67 and Its Application in Zinc Battery Separator |
| title_sort | preparation of hierarchical porous zif 67 and its application in zinc battery separator |
| topic | ZIF-67 battery separator zinc-ion battery |
| url | https://www.mdpi.com/2624-8549/6/6/80 |
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