Capacitance-enhanced sodium-ion storage in nitrogen-rich hard carbon
Article
Gaddam, Rohit Ranganathan, Niaei, Amir H. Farokh, Hankel, Marlies, Searles, Debra J., Nanjundan, Nanjundan Ashok and Zhao, X.S.. 2017. "Capacitance-enhanced sodium-ion storage in nitrogen-rich hard carbon." Journal of Materials Chemistry A. 5 (42), pp. 22186-22192. https://doi.org/10.1039/c7ta06754b
Article Title | Capacitance-enhanced sodium-ion storage in nitrogen-rich hard carbon |
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ERA Journal ID | 201058 |
Article Category | Article |
Authors | Gaddam, Rohit Ranganathan, Niaei, Amir H. Farokh, Hankel, Marlies, Searles, Debra J., Nanjundan, Nanjundan Ashok and Zhao, X.S. |
Journal Title | Journal of Materials Chemistry A |
Journal Citation | 5 (42), pp. 22186-22192 |
Number of Pages | 7 |
Year | 2017 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2050-7488 |
2050-7496 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c7ta06754b |
Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2017/ta/c7ta06754b |
Abstract | We demonstrate an approach to prepare nitrogen-rich hard carbon (N-HCS) from biomass as a robust anode material for sodium-ion batteries. A reversible capacity of ∼520 mA h g−1 at a current density of 20 mA g−1 along with an excellent rate performance was obtained. When cycled at a high current density of 1 A g−1, the N-HCS was stable for over 1000 cycles delivering a capacity of ∼204 mA h g−1. Density functional theory (DFT) computations verified that nitrogen doping enhances the interaction of sodium ions with the carbon, leading to a significantly improved storage capacity. This work provides new physical insights into the relationship between sodium-ion storage and nitrogen-containing hard carbon materials. |
Keywords | Anodes |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340303. Nanochemistry |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
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