The Role of Morphology in Optimized Electrochemical Performance of KOH-Activated Cellulose for Supercapacitor Applications

2017 ◽  
Keyword(s):  
Electrochemical Performance ◽  
Supercapacitor Applications

scholarly journals Electrochemical Performance of 2D-Hierarchical Sheet-Like ZnCo2O4 Microstructures for Supercapacitor Applications

Crystals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 566 ◽  
Author(s):  
Kumcham Prasad ◽  
Gutturu Rajasekhara Reddy ◽  
Megala Rajesh ◽  
P. Reddi Babu ◽  
Gnanendra Shanmugam ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Global Economy ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Cycling Performance ◽  
Utilization Rate ◽  
Rapid Improvement ◽  
Areal Capacitance ◽  
Supercapacitor Applications

With the rapid improvement of the global economy, the role of energy has become even more vital in the 21st century. In this regard, energy storage/conversion devices have become a major, worldwide research focus. In response to this, we have prepared two-dimensional (2D)-hierarchical sheet-like ZnCo2O4 microstructures for supercapacitor applications using a simple hydrothermal method. The 2D-hierarchical sheet-like morphologies with large surface area and smaller thickness enhanced the contact area of active material with the electrolyte, which increased the utilization rate. We investigated the electrochemical performance of sheet-like ZnCo2O4 microstructures while using Cyclic voltammetry (CV), Galvanostatic charge-discharge (GCD), and Electrochemical impedance spectroscopy (EIS) analysis. The electrochemical results demonstrated that the ZnCo2O4 electrode possesses 16.13 mF cm−2 of areal capacitance at 10 µA cm−2 of current density and outstanding cycling performance (170% of capacitance is retained after 1000 cycles at 500 µA cm−2). The high areal capacitance and outstanding cycling performance due to the unique sheet-like morphology of the ZnCo2O4 electrode makes it an excellent candidate for supercapacitor applications.

Role of molar concentration in NiCo2O4 nanoparticles synthesis for supercapacitor applications

2021 ◽  
Author(s):  
E. Merlin Arnold ◽  
P. Naveen Kumar ◽  
J. Antony Robinson ◽  
Bency P. Emmanuel ◽  
J. Kethzy Agnes ◽  
...  
Keyword(s):  
Molar Concentration ◽  
Nanoparticles Synthesis ◽  
Supercapacitor Applications

Crucial role of water content on the electrochemical performance of α-Ni(OH)2 as an anode material for lithium-ion batteries

Ionics ◽  
2020 ◽  
Vol 27 (1) ◽  
pp. 65-74
Author(s):  
Jinhuan Yao ◽  
Yanwei Li ◽  
Renshu Huang ◽  
Jiqiong Jiang ◽  
Shunhua Xiao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Water Content ◽  
Anode Material ◽  
Crucial Role ◽  
Lithium Ion

Three dimensional carbon nanotube/nickel hydroxide gels for advanced supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 30260-30267 ◽  
Author(s):  
Hanlin Cheng ◽  
Hai M. Duong
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Nickel Hydroxide ◽  
Three Dimensional ◽  
Excellent Electrochemical Performance ◽  
Supercapacitor Applications

CNT gel composite presenting different structures have been developed with excellent electrochemical performance for supercapacitor applications.

Unusual morphologies of reduced graphene oxide and polyaniline nanofibers-reduced graphene oxide composites for high performance supercapacitor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22551-22560 ◽  
Author(s):  
Rahul S. Diggikar ◽  
Dattatray J. Late ◽  
Bharat B. Kale
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Polyaniline Nanofibers ◽  
Pani Nanofibers ◽  
Reduced Graphene ◽  
Oxide Composites ◽  
Enhanced Electrochemical Performance ◽  
Supercapacitor Applications

The unique morphologies of reduced graphene oxide (RGO) and RGO–PANI nanofibers (NF) composites have been demonstrated. The enhanced electrochemical performance was observed for honeycomb like RGO–PANI NFs composites.

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