Scalable top-down synthesis of functional carbon nanosheets by aronia fruit powder for Li+ and K+ storage

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Carbon nanosheets (CNSs) have been used in various applications, ranging from energy storage to drug delivery. CNSs are conventionally synthesized by chemical vapor deposition, but their high cost and non-scalability prompted the development of alternative synthesis routes. More scalable methods such as the sol-gel process still suffer from its complicated synthetic steps with delicate conditions. Here, we demonstrate for the first time a unique top-down synthesis of CNSs from aronia fruit powder, which is simple, scalable, and cost-effective. Aronia-derived CNS can be fabricated at various heating temperatures (500, 700, and 90 0 degrees C) and under different atmospheres (N-2/H-2 and NH3), which can easily tune the overall physicochemical properties of the CNS. We evaluated the electrochemical performance of the CNS for potential applications in Li- and K-ion batteries, in which the CNS showed stable electrochemical performance even at a high current density (1000 mA g(-1)). Because of the high-throughput nature of this synthetic approach, the aronia-derived CNSs could be very useful in developing novel applications at an industrial scale. (C) 2021 Published by Elsevier Ltd.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2021-05
Language
English
Article Type
Article
Citation

ELECTROCHIMICA ACTA, v.377

ISSN
0013-4686
DOI
10.1016/j.electacta.2021.138068
URI
http://hdl.handle.net/10203/285274
Appears in Collection
MS-Journal Papers(저널논문)
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