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Facile synthesis of mesoporous Ni0.3Co2.7O4 hierarchical structures for high-performance supercapacitors
Abstract
In this work, we report the facile synthesis of mesoporous nickel cobalt oxide (Ni0.3Co2.7O4) hierarchical structures with excellent supercapacitive performance. Nickel cobalt oxalate hydrate (Ni0.1Co0.9C2O4·nH2O) is first synthesized as the precursor via a facile precipitation method, followed by controlled annealing to obtain mesoporous Ni0.3Co2.7O4 hierarchical structures. The sample prepared at a relatively low annealing temperature (400 °C) possesses more abundant mesopores and higher specific surface area, and exhibits excellent supercapacitive performance in aqueous alkaline electrolytes. An exceptionally high specific capacitance of 960 and 805 F g−1 is obtained under current densities of 0.625 and 6.25 A g−1, respectively, with excellent cyclic stability. The remarkable electrochemical performance is attributed to the desirable composition and the unique hierarchical mesoporous architectures.
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Cited by
Review of supercapacitors: Materials and devices
Poonam, Sharma, K., Arora, A., & Tripathi, S. K. (2019) · Journal of Energy Storage · doi:10.1016/j.est.2019.01.010 · Cited by 2,064
Zhao, Y., Li, X., Yan, B., Xiong, D., Li, D., Lawes, S., & Sun, X. (2016) · Advanced Energy Materials · doi:10.1002/aenm.201502175 · Cited by 910
Binary metal oxide: advanced energy storage materials in supercapacitors
Zhang, Y., Li, L., Su, H., Huang, W., & Dong, X. (2015) · Journal of Materials Chemistry A · doi:10.1039/c4ta04996a · Cited by 666
Flexible supercapacitors based on paper substrates: a new paradigm for low-cost energy storage
Zhang, Y.-Z., Wang, Y., Cheng, T., Lai, W.-Y., Pang, H., & Huang, W. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00174a · Cited by 638
Self-citationPeng, S., Li, L., Wu, H. B., Madhavi, S., & Lou, X. W. (. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201401172 · Cited by 638
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Metadata
- Authors
- Wu, H. B., Pang, H., & Lou, X. W. (.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 6
- Issue
- 12
- Pages
- 3619
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W2108982128
- Cited by
- 372
- References
- 0
- FWCI
- 20.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wu, H. B., Pang, H., & Lou, X. W. (. (2013). Facile synthesis of mesoporous Ni0.3Co2.7O4 hierarchical structures for high-performance supercapacitors. Energy & Environmental Science. https://doi.org/10.1039/c3ee42101e
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