scholarly journals Reduced Faradaic Contributions and Fast Charging of Nanoporous Carbon Electrodes in a Concentrated Sodium Nitrate Aqueous Electrolyte for Supercapacitors

2019 ◽  
Vol 7 (9) ◽  
pp. 1900430 ◽  
Author(s):  
Qamar Abbas ◽  
Bernhard Gollas ◽  
Volker Presser
RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13930-13940 ◽  
Author(s):  
Dattatray S. Dhawale ◽  
Gurudas P. Mane ◽  
Stalin Joseph ◽  
Siddulu N. Talapaneni ◽  
Chokkalingam Anand ◽  
...  

Nanoporous carbon (CMK-3-150) functionalized with different amounts of cobalt oxide (CoO) nanoparticles was synthesized by an incipient wetness impregnation technique for supercapacitor application.


2002 ◽  
Vol 5 (2) ◽  
pp. 307 ◽  
Author(s):  
Lust ◽  
Nurk ◽  
Janes ◽  
Arulepp ◽  
Permann ◽  
...  

2020 ◽  
Vol 12 (29) ◽  
pp. 32797-32805
Author(s):  
Sutarsis ◽  
Jagabandhu Patra ◽  
Ching-Yuan Su ◽  
Ju Li ◽  
Dominic Bresser ◽  
...  

2020 ◽  
Vol 1012 ◽  
pp. 109-113
Author(s):  
D.V. Silva ◽  
G.S. Galdino ◽  
Lusinete Pereira Barbosa ◽  
J.C.S. Casini ◽  
R.N. Faria

The effects of the separator thickness (δ) upon the equivalent series resistances (ESR) and specific capacitances (Cs) of supercapacitors electrodes have been investigated using commercially available porous filter paper (δ=150 μm, pores size=7.5 μm, 80 gm-2). Commercial activated carbon electrodes immersed in 1molL-1 KOH electrolyte (25°C) have been employed in this study. The specific capacitances were calculated from cyclic voltammetry curves at room temperature employing various scan rates (5, 10, 15 and 30 mVs-1). Internal series resistances of the supercapacitors were measured using the galvanostatic charge discharge curves also at room temperature. A maximum of 28 separators (δ=4200 μm) have been employed in this investigation. It has been shown that the ESR increases substantially with separator thickness (from 3.1 to 7.9 Ωcm2). The specific capacitance decreased somewhat with increasing separator thickness and scan rates (from 64 to 52 Fg-1; at 5 mVs-1). The microstructures of the electrode material have been investigated using scanning electron microscopy (SEM) and chemical microanalyses employing energy dispersive X-ray analysis (EDX). A compositional and morphological evaluation of these electrodes showed a very homogeneous microstructure.


2011 ◽  
Vol 12 (4) ◽  
pp. 044602 ◽  
Author(s):  
Kumaresa P S Prasad ◽  
Dattatray S Dhawale ◽  
Thiripuranthagan Sivakumar ◽  
Salem S Aldeyab ◽  
Javaid S M Zaidi ◽  
...  

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