Electrochemical preparation and characterization of a polypyrrole/nickel-cobalt hexacyanoferrate nanocomposite for supercapacitor applications

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91448-91456 ◽  
Author(s):  
Ali Asghar Ensafi ◽  
Najmeh Ahmadi ◽  
Behzad Rezaei
Keyword(s):  
Electrode Material ◽  
Conductive Polymer ◽  
Inorganic Compound ◽  
Electrochemical Preparation ◽  
Supercapacitor Application ◽  
Nickel Cobalt ◽  
Cobalt Hexacyanoferrate ◽  
Supercapacitor Applications

A new electrode material for supercapacitor application is introduced based on polypyrrole conductive polymer and nickel-cobalt hexacyanoferrate poly-nuclear inorganic compound.

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.

Preparation and characterization of activated carbon derived from the Borassus flabellifer flower as an electrode material for supercapacitor applications

2017 ◽  
Vol 41 (10) ◽  
pp. 3939-3949 ◽  
Author(s):  
M. Sivachidambaram ◽  
J. Judith Vijaya ◽  
L. John Kennedy ◽  
R. Jothiramalingam ◽  
Hamad A. Al-Lohedan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Material ◽  
Two Stage ◽  
Precursor Material ◽  
Stage Process ◽  
Activating Agent ◽  
Supercapacitor Applications ◽  
Characterization Of Activated Carbon

Activated carbon is prepared by a two stage process with H3PO4 activating agent using the precursor material Borassus flabellifer flower as an electrode material for supercapacitors.

Temperature Controlled Synthesis of Ce–MnO2 Nanostructure: Promising Electrode Material for Supercapacitor Applications

2020 ◽  
Vol 12 (4) ◽  
pp. 461-469 ◽  
Author(s):  
Rajesh Rajagopal ◽  
Kwang-Sun Ryu
Keyword(s):  
Electrode Material ◽  
Electrochemical Impedance ◽  
High Specific Capacitance ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
Supercapacitor Application ◽  
Structural Details ◽  
Different Temperatures ◽  
Microscope Technique ◽  
Supercapacitor Applications

The objective of this study was to prepare Ce–MnO2 nanostructure composite as an electrode material for supercapacitor application. Ce–MnO2 nanostructure composite was synthesized by facile hydrothermal method at different temperatures. Structural details of pure and Ce–MnO2 nanostructure composite were studied using powder X-ray diffraction technique. The formation of flower like structure and strong interaction with Ce and MnO2 were confirmed by field emission electron microscope technique. Their electrochemical performances were elucidated by using cyclic voltammetry, charge–discharge, and electrochemical impedance spectroscopy techniques. Nearly rectangular shaped cyclic voltagram was observed for synthesized Ce–MnO2 nanostructure composite electrode, indicating the existence of electric double layer capacitance nature. Ce–MnO2 (130) nanostructure composite exhibited high specific capacitance value of 147.25 F/g at applied current density of 1 A/g in 1 M Li2SO4 aqueous electrolyte. Furthermore, resistive and capacitive behaviors of these electrodes were studied from Nyquist and bode diagrams within frequency range of 10 mHz to 100 kHz.

Design of nickel cobalt molybdate regulated by boronizing for high-performance supercapacitor applications

Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17849-17857 ◽  
Author(s):  
Gang Zhao ◽  
Yumeng Chen ◽  
Pengxiao Sun ◽  
Shuhua Hao ◽  
Xiaoke Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Synergistic Effect ◽  
Hierarchical Structure ◽  
Electrode Material ◽  
High Performance ◽  
Hybrid Architectures ◽  
Storage Performance ◽  
Nickel Cobalt ◽  
Cobalt Molybdate ◽  
Supercapacitor Applications

Here, we have successfully synthesized hierarchical structure by boronizing NixCoyMoO4 nanosheets. Benefitting from the synergistic effect among Ni3B, Ni(BO2)2 and NixCoyMoO4 in hybrid architectures, the electrode material possesses higher energy storage performance.

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