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The critical role of point defects in improving the specific capacitance of δ-MnO2 nanosheets
Open accessAbstract
3D porous nanostructures built from 2D δ-MnO 2 nanosheets are an environmentally friendly and industrially scalable class of supercapacitor electrode material. While both the electrochemistry and defects of this material have been studied, the role of defects in improving the energy storage density of these materials has not been addressed. In this work, δ-MnO 2 nanosheet assemblies with 150 m 2 g−1 specific surface area are prepared by exfoliation of crystalline KxMnO 2 and subsequent reassembly. Equilibration at different pH introduces intentional Mn vacancies into the nanosheets, increasing pseudocapacitance to over 300 F g−1, reducing charge transfer resistance as low as 3 Ω, and providing a 50% improvement in cycling stability. X-ray absorption spectroscopy and high-energy X-ray scattering demonstrate a correlation between the defect content and the improved electrochemical performance. The results show that Mn vacancies provide ion intercalation sites which concurrently improve specific capacitance, charge transfer resistance and cycling stability.
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ATHENA,ARTEMIS,HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT
Ravel, B., & Newville, M. (2005) · Journal of Synchrotron Radiation · doi:10.1107/s0909049505012719 · Cited by 16,965
Where do batteries end and supercapacitors begin?
Simon, P., Gogotsi, Y., & Dunn, B. (2014) · Science · doi:10.1126/science.1249625 · Cited by 5,634
Pseudocapacitive oxide materials for high-rate electrochemical energy storage
Augustyn, V., Simon, P., & Dunn, B. (2014) · Energy & Environmental Science · doi:10.1039/c3ee44164d · Cited by 5,575
High-rate electrochemical energy storage through Li+ intercalation pseudocapacitance
Augustyn, V., Come, J., Lowe, M. A., Kim, J. W., Taberna, P.-L., Tolbert, S. H., Abruña, H. D., Simon, P., & Dunn, B. (2013) · Nature Materials · doi:10.1038/nmat3601 · Cited by 5,177
Two-dimensional detector software: From real detector to idealised image or two-theta scan
Hammersley, A. P., Svensson, S. O., Hanfland, M., Fitch, A. N., & Hausermann, D. (1996) · High Pressure Research · doi:10.1080/08957959608201408 · Cited by 4,674
Fityk : a general-purpose peak fitting program
Wojdyr, M. (2010) · Journal of Applied Crystallography · doi:10.1107/s0021889810030499 · Cited by 2,804
To Be or Not To Be Pseudocapacitive?
Brousse, T., Bélanger, D., & Long, J. W. (2015) · Journal of The Electrochemical Society · doi:10.1149/2.0201505jes · Cited by 2,500
Manganese oxide-based materials as electrochemical supercapacitor electrodes
Wei, W., Cui, X., Chen, W., & Ivey, D. G. (2011) · Chem. Soc. Rev. · doi:10.1039/c0cs00127a · Cited by 2,455
Graphene Oxide−MnO2 Nanocomposites for Supercapacitors
Chen, S., Zhu, J., Wu, X., Han, Q., & Wang, X. (2010) · ACS Nano · doi:10.1021/nn901311t · Cited by 2,113
Fan, Z., Yan, J., Wei, T., Zhi, L., Ning, G., Li, T., & Wei, F. (2011) · Advanced Functional Materials · doi:10.1002/adfm.201100058 · Cited by 1,993
Cited by
Chemical supercapacitors: a review focusing on metallic compounds and conducting polymers
Naskar, P., Maiti, A., Chakraborty, P., Kundu, D., Biswas, B., & Banerjee, A. (2021) · Journal of Materials Chemistry A · doi:10.1039/d0ta09655e · Cited by 303
Metadata
- Authors
- Gao, P., Metz, P., Hey, T., Gong, Y., Liu, D., Edwards, D. D., Howe, J. Y., Huang, R., & Misture, S. T.
- Venue
- Nature Communications
- Published
- 2017-02-23
- Volume
- 8
- Issue
- 1
- Pages
- 14559-14559
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2590426204
- Cited by
- 294
- References
- 48
- FWCI
- 8.82
- Type
- journal article
- Language
- en
- Open access
- gold
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- Gao, P., Metz, P., Hey, T., Gong, Y., Liu, D., Edwards, D. D., Howe, J. Y., Huang, R., & Misture, S. T. (2017). The critical role of point defects in improving the specific capacitance of δ-MnO2 nanosheets. Nature Communications. https://doi.org/10.1038/ncomms14559
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