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Molecules, volume 28, issue 8, pages 3595

Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage

Ning-Jing Song 1
Nannan Guo 2
Canliang Ma 2
Yun Zhao 2
Wanxi Li 1
Boqiong Li 1
Publication typeJournal Article
Publication date2023-04-20
Journal: Molecules
Q1
Q2
SJR0.744
CiteScore7.4
Impact factor4.2
ISSN14203049
Organic Chemistry
Drug Discovery
Physical and Theoretical Chemistry
Pharmaceutical Science
Molecular Medicine
Analytical Chemistry
Chemistry (miscellaneous)
Abstract

Biomass-derived hard carbon materials are considered as the most promising anode materials for sodium-ion batteries (SIBs) due to their abundant sources, environmental friendliness, and excellent electrochemical performance. Although much research exists on the effect of pyrolysis temperature on the microstructure of hard carbon materials, there are few reports that focus on the development of pore structure during the pyrolysis process. In this study, corncob is used as the raw material to synthesize hard carbon at a pyrolysis temperature of 1000~1600 °C, and their interrelationationship between pyrolysis temperature, microstructure and sodium storage properties are systematically studied. With the pyrolysis temperature increasing from 1000 °C to 1400 °C, the number of graphite microcrystal layers increases, the long-range order degree rises, and the pore structure shows a larger size and wide distribution. The specific capacity, the initial coulomb efficiency, and the rate performance of hard carbon materials improve simultaneously. However, as the pyrolysis temperature rises further to 1600 °C, the graphite-like layer begins to curl, and the number of graphite microcrystal layers reduces. In return, the electrochemical performance of the hard carbon material decreases. This model of pyrolysis temperatures–microstructure–sodium storage properties will provide a theoretical basis for the research and application of biomass hard carbon materials in SIBs.

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GOST |
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GOST Copy
Song N. et al. Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage // Molecules. 2023. Vol. 28. No. 8. p. 3595.
GOST all authors (up to 50) Copy
Song N., Guo N., Ma C., Zhao Y., Li W., Li B. Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage // Molecules. 2023. Vol. 28. No. 8. p. 3595.
RIS |
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RIS Copy
TY - JOUR
DO - 10.3390/molecules28083595
UR - https://doi.org/10.3390/molecules28083595
TI - Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage
T2 - Molecules
AU - Song, Ning-Jing
AU - Guo, Nannan
AU - Ma, Canliang
AU - Zhao, Yun
AU - Li, Wanxi
AU - Li, Boqiong
PY - 2023
DA - 2023/04/20
PB - MDPI
SP - 3595
IS - 8
VL - 28
SN - 1420-3049
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2023_Song,
author = {Ning-Jing Song and Nannan Guo and Canliang Ma and Yun Zhao and Wanxi Li and Boqiong Li},
title = {Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage},
journal = {Molecules},
year = {2023},
volume = {28},
publisher = {MDPI},
month = {apr},
url = {https://doi.org/10.3390/molecules28083595},
number = {8},
pages = {3595},
doi = {10.3390/molecules28083595}
}
MLA
Cite this
MLA Copy
Song, Ning-Jing, et al. “Modulating the Graphitic Domains and Pore Structure of Corncob-Derived Hard Carbons by Pyrolysis to Improve Sodium Storage.” Molecules, vol. 28, no. 8, Apr. 2023, p. 3595. https://doi.org/10.3390/molecules28083595.
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