The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Synthesis of porous NiO nanocrystals with controllable surface area and their application as supercapacitor electrodes
Open accessAbstract
We report a facile way to grow various porous NiO nanostructures including nanoslices, nanoplates, and nanocolumns, which show a structure-dependence in their specific charge capacitances. The formation of controllable porosity is due to the dehydration and re-crystallization of β -Ni(OH) 2 nanoplates synthesized by a hydrothermal process. Thermogravimetric analysis shows that the decomposition temperature of the β -Ni(OH) 2 nanostructures is related to their morphology. In electrochemical tests, the porous NiO nanostructures show stable cycling performance with retention of specific capacitance over 1000 cycles. Interestingly, the formation of nanocolumns by the stacking of β -Ni(OH) 2 nanoslices/plates favors the creation of small pores in the NiO nanocrystals obtained after annealing, and the surface area is over five times larger than that of NiO nanoslices and nanoplates. Consequently, the specific capacitance of the porous NiO nanocolumns (390 F/g) is significantly higher than that of the nanoslices (176 F/g) or nanoplates (285 F/g) at a discharge current of 5 A/g. This approach provides a clear illustration of the process-structure-property relationship in nanocrystal synthesis and potentially offers strategies to enhance the performance of supercapacitor electrodes.
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Cites
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“Porous nanostructures have received great attention because of their wide-ranging applications, such as in lithium-ion batteries [1–3], ion exchange membranes [4], catalysis supports [5–8], solar cells [9], and supercapacitor electrodes [10–14] due to their high surface area and enhanced interaction with the environme…”
BackgroundNi(OH) 2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials
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Self-citation
Cited by
Kate, R. S., Khalate, S. A., & Deokate, R. J. (2018) · Journal of Alloys and Compounds · doi:10.1016/j.jallcom.2017.10.262 · Cited by 574
Hierarchical NiCo2O4@NiCo2O4Core/Shell Nanoflake Arrays as High-Performance Supercapacitor Materials
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Electrochemical capacitors utilising transition metal oxides: an update of recent developments
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Metadata
- Authors
- Zhang, X., Shi, W., Zhu, J., Zhao, W., Ma, J., Mhaisalkar, S., Maria, T. L., Yang, Y., Zhang, H., Hng, H. H., & Yan, Q.
- Venue
- Nano Research
- Publisher
- Tsinghua University Press
- Published
- 2010-09
- Volume
- 3
- Issue
- 9
- Pages
- 643-652
- ISSN
- 1998-0000 (ISSN-L)
- 1998-0124
- OpenAlex
- W2156115590
- Cited by
- 566
- References
- 36
- FWCI
- 14.01
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Zhang, X., Shi, W., Zhu, J., Zhao, W., Ma, J., Mhaisalkar, S., Maria, T. L., Yang, Y., Zhang, H., Hng, H. H., & Yan, Q. (2010). Synthesis of porous NiO nanocrystals with controllable surface area and their application as supercapacitor electrodes. Nano Research. https://doi.org/10.1007/s12274-010-0024-6
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