Carbon Fibers Embedded With Iron Selenide (Fe3Se4) as Anode for High-Performance Sodium and Potassium Ion Batteries
The development of sodium and potassium ion batteries (SIBs/KIBs) has seen tremendous growth in recent years due to their promising properties as a potential replacement for lithium-ion batteries (LIBs). Here, we report ultrafine iron selenide (Fe 3 Se 4 ) nanoparticles embedded into one-dimensional...
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Published in | Frontiers in chemistry Vol. 8; p. 408 |
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Main Authors | , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Frontiers Media S.A
03.06.2020
|
Subjects | |
Online Access | Get full text |
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Summary: | The development of sodium and potassium ion batteries (SIBs/KIBs) has seen tremendous growth in recent years due to their promising properties as a potential replacement for lithium-ion batteries (LIBs). Here, we report ultrafine iron selenide (Fe
3
Se
4
) nanoparticles embedded into one-dimensional (1D) carbon fibers (Fe
3
Se
4
@CFs) as a potential candidate for SIBs/KIBs. The Fe-based metal-organic framework particles (MOFP) are used as a Fe source to obtain highly dispersed Fe
3
Se
4
nanoparticles in the product. The Fe
3
Se
4
@CF consisted of ultrafine particles of Fe
3
Se
4
with an average particle size of ~10 nm loaded into CFs with an average diameter of 300 nm. The product exhibited excellent specific activity of ~439 and ~435 mAh/g at the current density of 50 mA/g for SIBs and KIBs, respectively. In addition, the as-prepared anodes (Fe
3
Se
4
@CFs) exhibited excellent capacity retention up to several hundred cycles (700 cycles for SIBs and 300 cycles for KIBs). The high activity and excellent stability of the developed electrodes make Fe
3
Se
4
@CFs a promising electrode for next-generation batteries. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Reviewed by: Ji Liang, University of Wollongong, Australia; Hao Ge, Liaoning University, China; Qiang Ru, South China Normal University, China Edited by: Tianyi Ma, The University of Newcastle, Australia This article was submitted to Nanoscience, a section of the journal Frontiers in Chemistry |
ISSN: | 2296-2646 2296-2646 |
DOI: | 10.3389/fchem.2020.00408 |