Synthesis of nickel cobaltite spinel from coprecipitated nickel-cobalt hydroxide carbonate

1991 ◽  
Vol 3 (6) ◽  
pp. 1060-1063 ◽  
Author(s):  
D. Klissurski ◽  
E. Uzunova
Keyword(s):  
Cobalt Hydroxide ◽  
Nickel Cobalt ◽  
Nickel Cobaltite ◽  
Cobaltite Spinel

scholarly journals Nickel–cobalt hydroxide: a positive electrode for supercapacitor applications

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19410-19418
Author(s):  
M. Sangeetha Vidhya ◽  
G. Ravi ◽  
R. Yuvakkumar ◽  
Dhayalan Velauthapillai ◽  
M. Thambidurai ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Electrode Material ◽  
Positive Electrode ◽  
Cobalt Hydroxide ◽  
Critical Component ◽  
Metal Hydroxides ◽  
Nickel Cobalt ◽  
Supercapacitor Applications

So far, numerous metal oxides and metal hydroxides have been reported as an electrode material, a critical component in supercapacitors that determines the operation window of the capacitor.

Mesoporous nickel cobalt hydroxide/oxide as an excellent room temperature ammonia sensor

2017 ◽  
Vol 128 ◽  
pp. 65-68 ◽  
Author(s):  
Alfa Sharma ◽  
Prateek Bhojane ◽  
Amit Kumar Rana ◽  
Yogendra Kumar ◽  
Parasharam M. Shirage
Keyword(s):  
Room Temperature ◽  
Cobalt Hydroxide ◽  
Ammonia Sensor ◽  
Nickel Cobalt

Enhanced Structural Stability of Nickel–Cobalt Hydroxide via Intrinsic Pillar Effect of Metaborate for High-Power and Long-Life Supercapacitor Electrodes

Nano Letters ◽  
2016 ◽  
Vol 17 (1) ◽  
pp. 429-436 ◽  
Author(s):  
Yuanzhen Chen ◽  
Wei Kong Pang ◽  
Haihua Bai ◽  
Tengfei Zhou ◽  
Yongning Liu ◽  
...  
Keyword(s):  
Structural Stability ◽  
High Power ◽  
Cobalt Hydroxide ◽  
Nickel Cobalt ◽  
Long Life

scholarly journals Supercapacitor performance of porous nickel cobaltite nanosheets

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Xin Chen ◽  
Rui Xie ◽  
Hui Li ◽  
F. Jaber ◽  
F. Musharavati ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Nickel Foam ◽  
Three Dimensional ◽  
High Specific Capacitance ◽  
Mesoporous Structure ◽  
Cobalt Hydroxide ◽  
Transmission Electron ◽  
Nickel Cobaltite ◽  
Electrode Capacitance

Abstract In this work, nickel cobaltite (NiCo2O4) nanosheets with a porous structure were fabricated on nickel foam as a working electrode for supercapacitor applications. The nanosheets were fabricated by electrochemical deposition of nickel–cobalt hydroxide on the nickel foam substrate at ambient temperature in a three-electrode cell followed by annealing at 300 °C to transform the coating into a porous NiCo2O4 nanosheet. Field emission scanning electron microscopy and transmission electron microscopy revealed a three-dimensional mesoporous structure, which facilitates ion transport and electronic conduction for fast redox reactions. For one cycle, the NiCo2O4 electrodeposited nickel foam has a high specific capacitance (1734.9 F g−1) at a current density (CD) of 2 A g−1. The electrode capacitance decreased by only approximately 12.7% after 3500 cycles at a CD of 30 A g−1. Moreover, a solid-state asymmetric supercapacitor (ASC) was built utilising the NiCo2O4 nanosheets, carbon nanotubes, and a polyvinyl alcohol-potassium hydroxide gel as the anode, cathode, and solid-state electrolyte, respectively. The ASC displayed great electrochemical properties with a 42.25 W h kg−1 energy density at a power density of 298.79 W kg−1.

Facile synthesis of a graphene/nickel-cobalt hydroxide ternary hydrogel for high-performance supercapacitors

2018 ◽  
Vol 531 ◽  
pp. 593-601 ◽  
Author(s):  
Yangyang Shang ◽  
Juan Zhang ◽  
Liao Xu ◽  
Huaizhi Liu ◽  
Bo Zhou ◽  
...  
Keyword(s):  
High Performance ◽  
Cobalt Hydroxide ◽  
Facile Synthesis ◽  
Nickel Cobalt
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