The Electrochemical Capacitive Behaviors of NiO Nanoparticles
作者： Tao Meng , Pei-Pei Ma , Jian-Li Chang , Zhi-Hong Wang , Tie-Zhen Ren
DOI: 10.1016/J.ELECTACTA.2014.01.144
关键词: Dielectric spectroscopy 、 Nano- 、 Horizontal scan rate 、 Materials science 、 Nanomaterials 、 Precipitation (chemistry) 、 Particle size 、 Cyclic voltammetry 、 Chemical engineering 、 Non-blocking I/O 、 Nanotechnology
摘要: Abstract The NiO nanoparticles were synthesized at different temperatures using a simple hydrothermal precipitation method and then calcined 400 °C for 2 h. morphology, crystalline structures functional groups of nano materials investigated by SEM, XRD FT-IR, respectively. Electrochemical properties examined cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) charge-discharge tests. results showed that the particle size was around 10 nm dependent temperature in range 120-180 °C. Their specific capacitance achieved to 630 F/g scan rate 5 mV/s (vs. Hg/HgO). cycling test exhibited good performance after 500 cycles.
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