Metal–Organic Framework‐Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte
| Title: | Metal–Organic Framework‐Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte |
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| Authors: | Hongwen Liu, Chih-Yao Chen, Jialong Jiang, Runhao Zhang, Lianli Zou, Yong-Sheng Wei, Peng Cheng, Qiang Xu, Wei Shi |
| Source: | Small Structures, Vol 4, Iss 10, Pp n/a-n/a (2023) |
| Publisher Information: | Wiley-VCH, 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Physics LCC:Chemistry |
| Subject Terms: | cathode materials, high voltage, metal–organic framework derivatives, molten hydrates, rechargeable aqueous zinc batteries, Physics, QC1-999, Chemistry, QD1-999 |
| More Details: | Rechargeable aqueous zinc batteries (RAZBs) are emerging candidates for large‐scale energy storage. However, the lack of high‐capacity cathodes because of the electrostatic interactions between Zn2+ and cathode and the inferior electronic conductivity restricts their performance. The operating voltage limitation imposed by water is another barrier for RAZBs. Herein, manganese oxide (MnO) nanocrystals embedded in a spindle carbon matrix (MnO@C) synthesized from a metal–organic framework are used as a cathode. The uniform distribution of fine‐sized MnO (≈100 nm) in the carbonized matrix (≈5 μm) and the intimate connection between them not only increase the utilization of electroactive material but also eliminate the use of conductive additive. By utilizing the molten hydrate electrolyte, ZnCl2·2.33H2O, a discharge voltage plateau approaching 1.60 V and a high reversible capacity of 106 mAh g−1 after 200 cycles are achieved. This research proposes an approach for affordable RAZBs to fulfill large‐scale energy storage. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2688-4062 24081094 |
| Relation: | https://doaj.org/toc/2688-4062 |
| DOI: | 10.1002/sstr.202300071 |
| Access URL: | https://doaj.org/article/d5e6f24081094270929f989f59e2fb6b |
| Accession Number: | edsdoj.5e6f24081094270929f989f59e2fb6b |
| Database: | Directory of Open Access Journals |
| ISSN: | 26884062 24081094 |
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| DOI: | 10.1002/sstr.202300071 |
| Published in: | Small Structures |
| Language: | English |