Effect of Aqueous Electrolytes on the Performance of a Ti3C2Tx (MXene)−δ-MnO2 Asymmetric Supercapacitor

2021 ◽  
Author(s):  
Chaitanya Krishna Kamaja ◽  
Sangha Mitra ◽  
Gaganjot ◽  
Monica Katiyar
Keyword(s):  
Aqueous Electrolytes ◽  
Asymmetric Supercapacitor

scholarly journals 1.8 V Aqueous Symmetric Carbon-Based Supercapacitors with Agarose-Bound Activated Carbons in an Acidic Electrolyte

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1731
Author(s):  
Chih-Chung Lai ◽  
Feng-Hao Hsu ◽  
Su-Yang Hsu ◽  
Ming-Jay Deng ◽  
Kueih-Tzu Lu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Sulfuric Acid ◽  
Energy Density ◽  
Activated Carbons ◽  
High Energy ◽  
Aqueous Electrolytes ◽  
Alternative Material ◽  
Aqueous Cells ◽  
Acidic Electrolyte ◽  
Cycling Behavior

The specific energy of an aqueous carbon supercapacitor is generally small, resulting mainly from a narrow potential window of aqueous electrolytes. Here, we introduced agarose, an ecologically compatible polymer, as a novel binder to fabricate an activated carbon supercapacitor, enabling a wider potential window attributed to a high overpotential of the hydrogen-evolution reaction (HER) of agarose-bound activated carbons in sulfuric acid. Assembled symmetric aqueous cells can be galvanostatically cycled up to 1.8 V, attaining an enhanced energy density of 13.5 W h/kg (9.5 µW h/cm2) at 450 W/kg (315 µW/cm2). Furthermore, a great cycling behavior was obtained, with a 94.2% retention of capacitance after 10,000 cycles at 2 A/g. This work might guide the design of an alternative material for high-energy aqueous supercapacitors.

scholarly journals A SnO2QDs/GO/PPY ternary composite film as positive and graphene oxide/charcoal as negative electrodes assembled solid state asymmetric supercapacitor for high energy storage applications

RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 27801-27811
Author(s):  
M. Vandana ◽  
Y. S. Nagaraju ◽  
H. Ganesh ◽  
S. Veeresh ◽  
H. Vijeth ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Solid State ◽  
Composite Film ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Ternary Composite ◽  
Negative Electrodes ◽  
Energy Storage Applications ◽  
High Energy Storage

Representation of the synthesis steps of SnO2QDs/GO/PPY ternary composites and SnO2QDs/GO/PPY//GO/charcoal asymmetric supercapacitor device.

scholarly journals Metal Coated Fabric Based Asymmetric Supercapacitor for Wearable Applications

2021 ◽  
pp. 1-1
Author(s):  
Abhilash Pullanchiyodan ◽  
Libu Manjakkal ◽  
Ravinder Dahiya
Keyword(s):  
Asymmetric Supercapacitor ◽  
Coated Fabric

An oxygen-deficient cobalt-manganese oxide nanowire doped with P designed for high performance asymmetric supercapacitor

2021 ◽  
Vol 379 ◽  
pp. 138178 ◽  
Author(s):  
Feifei Xiang ◽  
Xinyi Zhou ◽  
Xiaoqiu Yue ◽  
Qiang Hu ◽  
Qiaoji Zheng ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
High Performance ◽  
Asymmetric Supercapacitor

Electrolytes for Reversible Zinc Electrodeposition for Dynamic Windows

2021 ◽  
Author(s):  
Desmond C Madu ◽  
Shakirul M Islam ◽  
Hanqing Pan ◽  
Christopher Barile
Keyword(s):  
Aqueous Electrolytes ◽  
Zinc Electrodeposition ◽  
Metal Electrodeposition ◽  
Electronically Tunable

Reversible metal electrodeposition is a promising approach for the construction of dynamic windows with electronically tunable transmission. In this manuscript, we study a series of aqueous electrolytes that support reversible...

Demonstration of 1.5 V asymmetric supercapacitor developed using MnCoSe2 ternary metal composite

2021 ◽  
Author(s):  
M. Sangeetha Vidhya ◽  
R. Yuvakkumar ◽  
G. Ravi ◽  
E. Sunil Babu ◽  
B. Saravanakumar ◽  
...  
Keyword(s):  
Metal Composite ◽  
Asymmetric Supercapacitor ◽  
Ternary Metal

Nickel Bismuth Oxide as Negative Electrode for Battery-type Asymmetric Supercapacitor

2021 ◽  
pp. 130058
Author(s):  
J. Johnson William ◽  
I. Manohara Babu ◽  
G. Muralidharan
Keyword(s):  
Bismuth Oxide ◽  
Negative Electrode ◽  
Asymmetric Supercapacitor
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