Preparation and research of high-performance LaFeO3/RGO supercapacitor

In this report, an RGO composite LaFeO 3 material was prepared by a hydrothermal method and calcination method. The structure, morphology, and electrochemical behavior of LaFeO 3 /RGO composites were studied. In the composite, RGO is attached to the porous spherical LaFeO 3 , and the content of RGO...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2022-05, Vol.26 (5), p.1291-1301
Main Authors: Li, Jiayun, Luo, Wangting, Wang, Xiaoqian, Yu, Chao, Zhang, YuJie, Meng, FanBin
Format: Article
Language:English
Subjects:
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Composite materials
Condensed Matter Physics
Current density
Electrochemical analysis
Electrochemistry
Energy Storage
Ferrites
Lanthanum compounds
Original Paper
Physical Chemistry
Supercapacitors
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Summary:In this report, an RGO composite LaFeO 3 material was prepared by a hydrothermal method and calcination method. The structure, morphology, and electrochemical behavior of LaFeO 3 /RGO composites were studied. In the composite, RGO is attached to the porous spherical LaFeO 3 , and the content of RGO has a great influence on the properties of the composite. The electrochemical performance of the LaFeO 3 /RGO sample is the best when the LaFeO 3 :RGO ratio reaches 1:2. When the current density is 1 A·g −1 , the specific capacitance is 367.4 F·g −1 , which is much higher than the sum of the current densities of LaFeO 3 and RGO monomers. In addition, excellent cycle stability with a capacity retention of 89.2% after 3000 cycles at a current density of 10 A·g −1 was obtained. Overall, the electrochemical behavior of the LaFeO 3 /RGO composites confirms the importance of composition adjustment of composites and demonstrates their potential as supercapacitors for energy storage applications.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-022-05165-3