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On the rising extra storage capacity of ultra-small Fe3O4 particles functionalized with HCS and their potential as high-performance anode material for electrochemical energy storage

We report a nanocomposite material exhibiting ultra-small Fe3O4 nanoparticles uniformly decorated on hollow carbon spheres (Fe3O4HCS). The unique hierarchically-structured material displays excellent electrochemical cycling performance that exceeds the theoretical bulk capacity of Fe3O4 when used as...

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Bibliographic Details
Main Authors: Singer, Lennart (Author) , Kukułka, Wojciech (Author) , Thauer, Elisa (Author) , Gräßler, Nico (Author) , Asyuda, Andika (Author) , Zharnikov, Michael (Author) , Mijowska, Ewa (Author) , Klingeler, Rüdiger (Author)
Format: Article (Journal)
Language:English
Published: 9 March 2023
In: Electrochimica acta
Year: 2023, Volume: 448, Pages: 1-9
ISSN:1873-3859
DOI:10.1016/j.electacta.2023.142155
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.electacta.2023.142155
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0013468623003390
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Author Notes:Lennart Singer, Wojciech Kukułka, Elisa Thauer, Nico Gräßler, Andika Asyuda, Michael Zharnikov, Ewa Mijowska, Rüdiger Klingeler
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Summary:We report a nanocomposite material exhibiting ultra-small Fe3O4 nanoparticles uniformly decorated on hollow carbon spheres (Fe3O4HCS). The unique hierarchically-structured material displays excellent electrochemical cycling performance that exceeds the theoretical bulk capacity of Fe3O4 when used as an anode in lithium-ion batteries. In particular, it features increasing reversible capacity upon cycling yielding 1050 mAh g−1at 0.1 A g−1 in cycle 250. Comprehensive scanning and transmission electron microscopy images combined with detailed electrochemical analysis demonstrate that the outstanding electrochemical performance can be traced back to the formation and decomposition of a capacitative surface layer during dis/charging.
Item Description:Online verfügbar 2. März 2023, Artikelversion 9. März 2023
Im Titel sind die Zahlen 3 und 4 tiefgestellt
Gesehen am 25.05.2023
Physical Description:Online Resource
ISSN:1873-3859
DOI:10.1016/j.electacta.2023.142155

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