NiO/LaNiO3 film electrode with binder-free for high performance supercapacitor

作者：Liu Xi; Du Guo; Zhu Jiliang; Zeng Zifan; Zhu Xiaohong

来源：Applied Surface Science, 2016, 384: 92-98.

DOI：10.1016/j.apsuc.2016.05.005

• NiO/LaNiO3 electrode
• Specific capacitance
• Supercapacitor

NiO/LaNiO3 (NiO/LNO) film electrode was prepared by spin-coating technique on Pt/Ti/SiO2/Si(100) substrates. The crystal structure and surface morphology were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Cyclic voltammetry (CV), galvanostatic charge/discharge, electrochemical impedance spectroscopy (EIS) and cyclic charge-discharge measurements were employed to evaluate the electrochemical performance of the electrode. The effect of LNO layer on the performance of the NiO/LNO electrode was also investigated. The NiO/LNO electrode with appropriate LNO content possesses high specific capacitance (2030 F/g at 0.5 A/g) and good cyclability (specific capacitance retention of 83% after 1000 cycles). The present study suggests that NiO/LNO film is a promising electrode material for supercapacitor.

• 出版日期2016-10-30
• 单位四川大学