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High‐Performance Asymmetric Supercapacitors Based on Multilayer MnO2/Graphene Oxide Nanoflakes and Hierarchical Porous Carbon with Enhanced Cycling Stability
Abstract
In this work, MnO 2/GO (graphene oxide) composites with novel multilayer nanoflake structure, and a carbon material derived from Artemia cyst shell with genetic 3D hierarchical porous structure (HPC), are prepared. An asymmetric supercapacitor has been fabricated using MnO 2/GO as positive electrode and HPC as negative electrode material. Because of their unique structures, both MnO 2/GO composites and HPC exhibit excellent electrochemical performances. The optimized asymmetric supercapacitor could be cycled reversibly in the high voltage range of 0–2 V in aqueous electrolyte, which exhibits maximum energy density of 46.7 Wh kg−1 at a power density of 100 W kg−1 and remains 18.9 Wh kg−1 at 2000 W kg−1. Additionally, such device also shows superior long cycle life along with ∼100% capacitance retention after 1000 cycles and ∼93% after 4000 cycles.
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Cited by
Materials Design and System Construction for Conventional and New‐Concept Supercapacitors
Wu, Z., Li, L., Yan, J., & Zhang, X. (2017) · Advanced Science · doi:10.1002/advs.201600382 · Cited by 470
Lai, F., Miao, Y.-E., Zuo, L., Lu, H., Huang, Y., & Liu, T. (2016) · Small · doi:10.1002/smll.201600412 · Cited by 451
Self-citationMa, H., He, J., Xiong, D.-B., Wu, J., Li, Q., Dravid, V., & Zhao, Y. (2016) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b10280 · Cited by 396
Self-citationYang, J., Xiao, X., Chen, P., Zhu, K., Cheng, K., Ye, K., Wang, G., Cao, D., & Yan, J. (2019) · Nano Energy · doi:10.1016/j.nanoen.2019.01.071 · Cited by 363
Dong, W., Xie, M., Zhao, S., Qin, Q., & Huang, F. (2023) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2022.100713 · Cited by 319
Metadata
- Authors
- Zhao, Y., Ran, W., He, J., Huang, Y., Liu, Z., Liu, W., Tang, Y., Zhang, L., Gao, D., & Gao, F.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2014-11-10
- Volume
- 11
- Issue
- 11
- Pages
- 1310-1319
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2166620274
- Cited by
- 343
- References
- 0
- FWCI
- 14.59
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Zhao, Y., Ran, W., He, J., Huang, Y., Liu, Z., Liu, W., Tang, Y., Zhang, L., Gao, D., & Gao, F. (2015). High‐Performance Asymmetric Supercapacitors Based on Multilayer MnO2/Graphene Oxide Nanoflakes and Hierarchical Porous Carbon with Enhanced Cycling Stability. Small. https://doi.org/10.1002/smll.201401922
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