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Published in: Rare Metals 12/2023

19-10-2023 | Original Article

Tuning sodium wettability and pore tortuosity for superior sodium storage

Authors: Yao-Yao Xiao, Yi-Hui Liu, Bing-Bing Liu, Zhen-Guo Qi, You-Bin Zhang, Fu-Sheng Liu, Guo-Hui Qin

Published in: Rare Metals | Issue 12/2023

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Abstract

Abundant FeS2 with high theoretical capacity is one of the promising anode candidates in sodium-ion batteries (SIBs), however, the uneven sodium deposition due to the poor interface compatibility and sluggish reaction kinetics because of the high activation barrier still plague its practical application. Herein, we synthesized the ordered porous carbon matrix wrapped FeS2 nanoparticles (FeS2@OCN) with high sodium wettability and low pore tortuosity to economically enhance the interface compatibility as well as to lower the energy barrier in SIBs. The synergistic effects of low tortuosity pores and strong sodium wettability homogenize the Na+ flux distribution, bring the electron dislocation via the enrichment of edge-nitrogen (Pyridinic N and Pyrrolic N), thus achieving the dendrite-free sodium deposition and dramatically enhanced reaction kinetics. Benefiting from exceptional structural/compositional/electronic merits, the resultant anode is endowed with exceptional structure stability, achieving long-term cycling stability of 451.9 mAh·g−1 after 1000 cycles at 1 A·g−1 with specific capacity retention of 92.9%. Attenuated electrode tortuosity and high sodium wettability can corporately improve the interface compatibility and attenuate the activation barrier of the FeS2 host and beyond.

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Appendix
Available only for authorised users
Literature
[18]
[29]
go back to reference Cheng G, Zhang W, Wang W, Wang H, Wang Y, Shi J, Chen J, Liu S, Huang M, Mitlin D. Sulfur and nitrogen codoped cyanoethyl cellulose-derived carbon with superior gravimetric and volumetric capacity for potassium ion storage. Carbon Energy. 2022;4(5):986. https://doi.org/10.1002/cey2.233.CrossRef Cheng G, Zhang W, Wang W, Wang H, Wang Y, Shi J, Chen J, Liu S, Huang M, Mitlin D. Sulfur and nitrogen codoped cyanoethyl cellulose-derived carbon with superior gravimetric and volumetric capacity for potassium ion storage. Carbon Energy. 2022;4(5):986. https://​doi.​org/​10.​1002/​cey2.​233.CrossRef
Metadata
Title
Tuning sodium wettability and pore tortuosity for superior sodium storage
Authors
Yao-Yao Xiao
Yi-Hui Liu
Bing-Bing Liu
Zhen-Guo Qi
You-Bin Zhang
Fu-Sheng Liu
Guo-Hui Qin
Publication date
19-10-2023
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 12/2023
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-023-02351-8

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