Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage
To address large volumetric expansion and low conductivity of bismuth-based anodes, an ion-replacement technique is proposed to prepare Bi/C composites, using 1,3,5-benzenetricarboxylicacid (H<sub>3</sub>BTC) based metal–organic framework as precursors. The characterizations reveal that...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2313-0105/11/1/2 |
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| author | Zhenpeng Zhu Shuya Zhang Kuan Shen Fu Cao Qinghong Kong Junhao Zhang |
| author_facet | Zhenpeng Zhu Shuya Zhang Kuan Shen Fu Cao Qinghong Kong Junhao Zhang |
| author_sort | Zhenpeng Zhu |
| collection | DOAJ |
| description | To address large volumetric expansion and low conductivity of bismuth-based anodes, an ion-replacement technique is proposed to prepare Bi/C composites, using 1,3,5-benzenetricarboxylicacid (H<sub>3</sub>BTC) based metal–organic framework as precursors. The characterizations reveal that the Bi/C composite derived from Cu-H<sub>3</sub>BTC is a sheet structure with the size of 150 nm, and Bi nanoparticles are uniformly dispersed in carbon sheets. When assessed as anode material for sodium ion batteries (SIBs), a sheet-like Bi/C anode exhibits superior sodium storage performance. It delivers a reversible capacity of 254.6 mAh g<sup>−1</sup> at 1.0 A g<sup>−1</sup> after 100 cycles, and the capacity retention is high at 91%. Even at 2.0 A g<sup>−1</sup>, the reversible capacity still reaches 242.8 mAh g<sup>−1</sup>. The efficient sodium storage performance benefits from the uniform dispersion of Bi nanoparticles in the carbon matrix, which not only provides abundant active sites but also alleviates the volume expansion. Meanwhile, porous carbon sheets can increase the electrical conductivity and accelerate the electrochemical reaction kinetics. |
| format | Article |
| id | doaj-art-b2eebf27935a42ffa9b56b58de1bacb7 |
| institution | Kabale University |
| issn | 2313-0105 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj-art-b2eebf27935a42ffa9b56b58de1bacb72025-01-24T13:22:21ZengMDPI AGBatteries2313-01052024-12-01111210.3390/batteries11010002Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium StorageZhenpeng Zhu0Shuya Zhang1Kuan Shen2Fu Cao3Qinghong Kong4Junhao Zhang5School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaTo address large volumetric expansion and low conductivity of bismuth-based anodes, an ion-replacement technique is proposed to prepare Bi/C composites, using 1,3,5-benzenetricarboxylicacid (H<sub>3</sub>BTC) based metal–organic framework as precursors. The characterizations reveal that the Bi/C composite derived from Cu-H<sub>3</sub>BTC is a sheet structure with the size of 150 nm, and Bi nanoparticles are uniformly dispersed in carbon sheets. When assessed as anode material for sodium ion batteries (SIBs), a sheet-like Bi/C anode exhibits superior sodium storage performance. It delivers a reversible capacity of 254.6 mAh g<sup>−1</sup> at 1.0 A g<sup>−1</sup> after 100 cycles, and the capacity retention is high at 91%. Even at 2.0 A g<sup>−1</sup>, the reversible capacity still reaches 242.8 mAh g<sup>−1</sup>. The efficient sodium storage performance benefits from the uniform dispersion of Bi nanoparticles in the carbon matrix, which not only provides abundant active sites but also alleviates the volume expansion. Meanwhile, porous carbon sheets can increase the electrical conductivity and accelerate the electrochemical reaction kinetics.https://www.mdpi.com/2313-0105/11/1/2ion-replacement strategysheet-like Bi/C compositeuniform dispersionsodium-ion batteriessuperior cycling stability |
| spellingShingle | Zhenpeng Zhu Shuya Zhang Kuan Shen Fu Cao Qinghong Kong Junhao Zhang Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage Batteries ion-replacement strategy sheet-like Bi/C composite uniform dispersion sodium-ion batteries superior cycling stability |
| title | Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage |
| title_full | Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage |
| title_fullStr | Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage |
| title_full_unstemmed | Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage |
| title_short | Ion-Replacement Strategy in Preparing Bi-Based MOF and Its Derived Bi/C Composite for Efficient Sodium Storage |
| title_sort | ion replacement strategy in preparing bi based mof and its derived bi c composite for efficient sodium storage |
| topic | ion-replacement strategy sheet-like Bi/C composite uniform dispersion sodium-ion batteries superior cycling stability |
| url | https://www.mdpi.com/2313-0105/11/1/2 |
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