Construction of a homologous bimetallic oxide Bi 2 Fe 4 O 9 @Bi 25 FeO 40 heterostructure to boost supercapacitor performance

Herein, a Bi Fe O @Bi FeO heterostructure with a high specific surface area of 30.07 m g and abundant heterogeneous interfaces was successfully fabricated and applied to supercapacitors for the first time. The Bi Fe O @Bi FeO electrode exhibits a high specific capacity (550.8 F g at 1.0 A g ) and go...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2024-11, Vol.53 (43), p.17437-17442
Main Authors: Cheng, Bingjie, Li, Xiaoqiang, Han, Ruqu, Xiang, Jun, Zhang, Yamei
Format: Article
Language:English
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Summary:Herein, a Bi Fe O @Bi FeO heterostructure with a high specific surface area of 30.07 m g and abundant heterogeneous interfaces was successfully fabricated and applied to supercapacitors for the first time. The Bi Fe O @Bi FeO electrode exhibits a high specific capacity (550.8 F g at 1.0 A g ) and good cycling stability (75% capacitance retention and 92.3% coulombic efficiency after 3000 cycles at 5.0 A g ), significantly outperforming the pure Bi Fe O or Bi FeO electrode. This work proposes an effective interfacial engineering strategy to enhance supercapacitor performance.
ISSN:1477-9226
1477-9234
DOI:10.1039/D4DT02585G