Electrochemical Impedance Spectroscopy Illuminating Performance Evolution of Porous Core–Shell Structured Nickel/Nickel Oxide Anode Materials

2015 ◽  
Vol 164 ◽  
pp. 55-61 ◽  
Author(s):  
Bo Yan ◽  
Minsi Li ◽  
Xifei Li ◽  
Zhimin Bai ◽  
Lei Dong ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Nickel Oxide ◽  
Anode Materials ◽  
Electrochemical Impedance ◽  
Core Shell ◽  
Porous Core ◽  
Oxide Anode

Investigation of Cr2O3as Anode Materials for Lithium-Ion Batteries by Electrochemical Impedance Spectroscopy

2015 ◽  
Vol 162 (7) ◽  
pp. A1156-A1162 ◽  
Author(s):  
Xing Zhao ◽  
Quan-Chao Zhuang ◽  
Shou-Dong Xu ◽  
Ya-Xi Xu ◽  
Yue-Li Shi ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Electrochemical Impedance ◽  
Lithium Ion

Electrochemical Impedance Spectroscopy Study of Supercapacitors Using Deposited Nickel Oxide Nanoparticles Carbon Monolith Electrodes

2015 ◽  
Vol 1112 ◽  
pp. 236-240 ◽  
Author(s):  
N.H. Basri ◽  
Mohamad Deraman ◽  
Rusli Daik ◽  
Muhammad Taqiyuddin Mawardi Ayob ◽  
Muhamad Izhar Sahri ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Nickel Oxide ◽  
Electrochemical Impedance ◽  
Porous Electrodes ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
X Ray ◽  
Carbon Monolith ◽  
Dipping Time

Activated carbon monolith porous electrodes of a supercapacitor prepared by carbonization (N2) and activation (CO2) methods from KOH-treated pre-carbonized biomass fibers were deposited with nickel oxide at varying dipping time (from 0 to 60 min) in 20 mL of 0.1 mol Ni(NO3)2 and 20 mL of 0.2 mol NaOH solution followed by annealing at 300°C for 2 h. N2 adsorption-desorption characterization results confirmed the porous characteristic of the bare electrodes (surface area 1656 m2g-1). Energy dispersive X-ray (EDX) analysis and field emission scanning electron microscopy (FESEM) results showed the deposited nickel oxide nanoparticles were homogeneously distributed on the surface of electrodes and X-ray diffraction results revealed the semicrystalline phase of the deposited particles. Electrochemical impedance spectroscopy characterization of the supercapacitor cells fabricated using these electrodes showed that the optimum dipping time (15 – 45 min) can improve the supercapacitor specific capacitance and equivalent series resistance by 27 – 30 % and 6 – 34 %, respectively.

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