Binder-Free Fe₂O₃- C-Ni Composite for Supercapacity Eletrode

Abstract:

Fe₂O₃-C-Ni heterojunction structured composite on foam Ni was successfully prepared by simple and effective hydrothermal reaction. The obtained material had good structural stability and excellent electrical conductivity. This binder-free Fe₂O₃-C-Ni electrode exhibits typical pseudocapacitance. Specific capacitance of Fe₂O₃-C-Ni in 1.0 mol L^-1 KOH reaches 844.6 F g^-1, which is higher than that of Fe₂O₃-Ni and C-Ni electrodes. For practice application, assembled Fe₂O₃-C-Ni//AC capacitor exhibits a long-term cycling performance with remains 79.5% capacitance retention within 20000 cycles at 1 A g^-1.

• Periodical: Defect and Diffusion Forum (Volume 421)
• Pages: 91-97
• DOI: https://doi.org/10.4028/p-n5r3e9
• Online since: December 2022
• Authors: Yu Bin Yang, Shao Min Zhu*, Shuo Jia Zhang, Hong Feng Xu
• Keywords: Binder-Free, Fe₂O₃-C-Ni Composite, Supercapacitor

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