N and S co-doped nanosheet-like porous carbon derived from sorghum biomass: mechanical nanoarchitecturing for upgraded potassium ion batteries
Article
Kim, Minjun, Ma, Liang, Li, Zhibin, Mai, Wenjie, Amiralian, Nasim, Rowan, Alan E., Yamauchi, Yusuke, Qin, Aimiao, Afzal, Rana Arslan, Martin, Darren, Nanjundan, Ashok Kumar and Li, Jinliang. 2023. "N and S co-doped nanosheet-like porous carbon derived from sorghum biomass: mechanical nanoarchitecturing for upgraded potassium ion batteries." Journal of Materials Chemistry A. 11 (31), pp. 16626-16635. https://doi.org/10.1039/d3ta03215a
Article Title | N and S co-doped nanosheet-like porous carbon derived from sorghum biomass: mechanical nanoarchitecturing for upgraded potassium ion batteries |
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ERA Journal ID | 201058 |
Article Category | Article |
Authors | Kim, Minjun, Ma, Liang, Li, Zhibin, Mai, Wenjie, Amiralian, Nasim, Rowan, Alan E., Yamauchi, Yusuke, Qin, Aimiao, Afzal, Rana Arslan, Martin, Darren, Nanjundan, Ashok Kumar and Li, Jinliang |
Journal Title | Journal of Materials Chemistry A |
Journal Citation | 11 (31), pp. 16626-16635 |
Number of Pages | 10 |
Year | 2023 |
Publisher | The Royal Society of Chemistry |
ISSN | 2050-7488 |
2050-7496 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/d3ta03215a |
Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2023/ta/d3ta03215a |
Abstract | In this study, nanosheet-like sorghum biomass is obtained by a mild alkaline treatment and high-energy ball milling. N, S co-doped hard carbon (NSSC) with the nanosheet morphology is subsequently synthesized by a direct-carbonization of the nanosheet-like sorghum biomass mixed with thiourea. NSSCs obtained at various annealing temperatures demonstrate that the optimal annealing temperature is necessary to balance the efficient heteroatom-doping and the level of carbonization. NSSC-600 obtained at the optimized annealing temperature of 600 °C presents a great K-ion storage performance as an anode material with a high reversible specific capacity of 268 mA h g−1 at 100 mA g−1 and outstanding stability over 2400 cycles. The effect of N and S heteroatom-doping on K-ion adsorption capacity is also verified by density functional theory (DFT) calculations. |
Keywords | Annealing |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401605. Functional materials |
340604. Electrochemistry | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Jinan University, China | |
Nagoya University, Japan | |
Guilin University of Technology, China |
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