A high energy storage supercapacitor based on nanoporous activated carbon electrode made from Argan shells with excellent ion transport in aqueous and non-aqueous electrolytes

2019 ◽  
Vol 26 ◽  
pp. 100958 ◽  
Author(s):  
Ouassim Boujibar ◽  
Arunabh Ghosh ◽  
Ouafae Achak ◽  
Tarik Chafik ◽  
Fouad Ghamouss
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Ion Transport ◽  
High Energy ◽  
Aqueous Electrolytes ◽  
Carbon Electrode ◽  
High Energy Storage ◽  
Nanoporous Activated Carbon

Designed construction of yolk–shell structured trimanganese tetraoxide nanospheres via polar solvent-assisted etching and biomass-derived activated porous carbon materials for high-performance asymmetric supercapacitors

2017 ◽  
Vol 5 (30) ◽  
pp. 15808-15821 ◽  
Author(s):  
Goli Nagaraju ◽  
S. Chandra Sekhar ◽  
G. Seeta Rama Raju ◽  
L. Krishna Bharat ◽  
Jae Su Yu
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Polar Solvent ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Porous Carbon Materials ◽  
High Energy Storage

Yolk–shell structured Mn3O4 nanospheres and biomass-derived activated carbon materials were prepared for use in high energy storage asymmetric supercapacitors.

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 High energy storage MnO2@C fabricated by ultrasonic-assisted stepwise electrodeposition and vapor carbon coating

2021 ◽  
Vol 6 ◽  
pp. 100098
Author(s):  
Ming Zhang ◽  
Dandan Jin ◽  
Liu Zhang ◽  
Xumei Cui ◽  
Zhi Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Carbon Coating ◽  
High Energy ◽  
Ultrasonic Assisted ◽  
High Energy Storage

Sandwich structured lead-free ceramics based on Bi0.5Na0.5TiO3 for high energy storage

2021 ◽  
pp. 130669
Author(s):  
Fei Yan ◽  
Hairui Bai ◽  
Yunjing Shi ◽  
Guanglong Ge ◽  
Xiaofeng Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
High Energy Storage

Microfluidic-architected core–shell flower-like δ-MnO2@graphene fibers for high energy-storage wearable supercapacitors

2021 ◽  
Vol 372 ◽  
pp. 137827
Author(s):  
Yunming Jia ◽  
Xiaying Jiang ◽  
Arsalan Ahmed ◽  
Lan Zhou ◽  
Qinguo Fan ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Core Shell ◽  
High Energy Storage ◽  
Graphene Fibers

A novel relaxor (Bi,Na,Ba)(Ti,Zr)O 3 lead‐free ceramic with high energy storage performance

2021 ◽  
Author(s):  
Muhammad Kashif Bilal ◽  
Jian Wang ◽  
Rabia Bashir ◽  
Huan Liu ◽  
Sana Ullah Asif ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Performance ◽  
Lead Free Ceramic ◽  
High Energy Storage

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.

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