Synthesis of porous Cu₇.₂S₄ sub-microspheres by an ion exchange method for high-performance supercapacitors
2016
Zhou, Kaiyuan | Liang, Jicai | Liu, Jiaang | Sun, Peng | Bu, Jianguo | Moren | Chen, Guangyi
The porous Cu₇.₂S₄ sub-microspheres were synthesized by ion exchange reaction using Cu₂O as a precursor. The morphology and structure of the obtained samples were characterized by XRD, SEM, and TEM analysis in detail and the formation mechanism was studied. The pseudo-capacitive properties were evaluated by CV and galvanostatic charge–discharge tests in 6 M KOH solution. The as-prepared porous Cu₇.₂S₄ sub-microspheres electrode has a specific capacitance of 491.5 F g⁻¹ at 1 A g⁻¹ and exhibits good electrochemical performance as an electrode material for supercapacitors.
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