Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries
Considering the high safety, low-cost and high capacity, aqueous zinc ion batteries have been a potential candidate for energy storage ensuring smooth electricity supply. Herein, we have synthesized inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets by a solution template...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Sprog: | English |
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2020
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| Online adgang: | https://hdl.handle.net/10356/141511 |
| _version_ | 1826120849844862976 |
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| author | Ren, Hao Zhao, Jin Yang, Lan Liang, Qinghua Madhavi, Srinivasan Yan, Qingyu |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Ren, Hao Zhao, Jin Yang, Lan Liang, Qinghua Madhavi, Srinivasan Yan, Qingyu |
| author_sort | Ren, Hao |
| collection | NTU |
| description | Considering the high safety, low-cost and high capacity, aqueous zinc ion batteries have been a potential candidate for energy storage ensuring smooth electricity supply. Herein, we have synthesized inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets by a solution template method at mild temperature. The ultrathin nanosheets with the thickness as small as 1 nm are well separated without obvious aggregation. Used as cathode material for aqueous zinc ion batteries, the few-layered ultrathin nanosheets combined with the inverse opal structure guarantee excellent performance. A high specific discharge capacity of 262.9 mAh·g−1 is retained for the 100th cycle at a current density of 300 mA·g−1 with a high capacity retention of 95.6%. A high specific discharge capacity of 121 mAh·g−1 at a high current density of 2,000 mA·g−1 is achieved even after 5,000 long-term cycles. The ex-situ X-ray diffraction (XRD) patterns, selected-area electron diffraction (SAED) patterns and high-resolution transmission electron microscopy (HRTEM) results demonstrate that the discharge/charge processes involve the reversible formation of zinc sulfate hydroxide hydrate on the cathode while in-plane crystal structure of the layered birnessite MnO2 could be maintained. This unique structured MnO2 is a promising candidate as cathode material for high capacity, high rate capability and long-term aqueous zinc-ion batteries. |
| first_indexed | 2024-10-01T05:23:11Z |
| format | Journal Article |
| id | ntu-10356/141511 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:23:11Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1415112023-07-14T16:02:29Z Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries Ren, Hao Zhao, Jin Yang, Lan Liang, Qinghua Madhavi, Srinivasan Yan, Qingyu School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Materials Inverse Opal Ultrathin Considering the high safety, low-cost and high capacity, aqueous zinc ion batteries have been a potential candidate for energy storage ensuring smooth electricity supply. Herein, we have synthesized inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets by a solution template method at mild temperature. The ultrathin nanosheets with the thickness as small as 1 nm are well separated without obvious aggregation. Used as cathode material for aqueous zinc ion batteries, the few-layered ultrathin nanosheets combined with the inverse opal structure guarantee excellent performance. A high specific discharge capacity of 262.9 mAh·g−1 is retained for the 100th cycle at a current density of 300 mA·g−1 with a high capacity retention of 95.6%. A high specific discharge capacity of 121 mAh·g−1 at a high current density of 2,000 mA·g−1 is achieved even after 5,000 long-term cycles. The ex-situ X-ray diffraction (XRD) patterns, selected-area electron diffraction (SAED) patterns and high-resolution transmission electron microscopy (HRTEM) results demonstrate that the discharge/charge processes involve the reversible formation of zinc sulfate hydroxide hydrate on the cathode while in-plane crystal structure of the layered birnessite MnO2 could be maintained. This unique structured MnO2 is a promising candidate as cathode material for high capacity, high rate capability and long-term aqueous zinc-ion batteries. NRF (Natl Research Foundation, S’pore) Accepted version 2020-06-09T02:11:25Z 2020-06-09T02:11:25Z 2019 Journal Article Ren, H., Zhao, J., Yang, L., Liang, Q., Madhavi, S., & Yan, Q. (2019). Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries. Nano Research, 12(6), 1347-1353. doi:10.1007/s12274-019-2303-1 1998-0124 https://hdl.handle.net/10356/141511 10.1007/s12274-019-2303-1 2-s2.0-85062773858 6 12 1347 1353 en Nano Research © 2019 Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved. This paper was published in Nano Research and is made available with permission of Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature. application/pdf |
| spellingShingle | Engineering::Materials Inverse Opal Ultrathin Ren, Hao Zhao, Jin Yang, Lan Liang, Qinghua Madhavi, Srinivasan Yan, Qingyu Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title | Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title_full | Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title_fullStr | Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title_full_unstemmed | Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title_short | Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries |
| title_sort | inverse opal manganese dioxide constructed by few layered ultrathin nanosheets as high performance cathodes for aqueous zinc ion batteries |
| topic | Engineering::Materials Inverse Opal Ultrathin |
| url | https://hdl.handle.net/10356/141511 |
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