High yield design of mesoporous tetrakaidecahedron-like α-Fe 2 O 3 nanocrystals with enhanced supercapacitive performance
Ionics(2023)
摘要
In this work, novel mesoporous tetrakaidecahedron-like α-Fe 2 O 3 nanocrystals have been designed in high yield through a simple hydrothermal method. The growth mechanism of mesoporous tetrakaidecahedron-like α-Fe 2 O 3 nanocrystals was first investigated in detail based on the FESEM images and XRD results of the intermediate products. The electrochemical performance demonstrates that the mesoporous tetrakaidecahedron-like α-Fe 2 O 3 nanocrystal electrode displays enhanced pseudocapacitive properties with a high specific capacitance of 245 F g −1 at 2 A g −1 and good capacitance retention of 83.9% after 2000 continuous charge–discharge cycles, implying that the porous tetrakaidecahedron-like α-Fe 2 O 3 nanocrystals have great potential applications for supercapacitors.
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关键词
Iron oxide,Mesoporous,Tetrakaidecahedron-like,Supercapacitor
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