Freestanding CoSeO3·H2O nanoribbon/carbon nanotube composite paper for 2.4 V high-voltage, flexible, solid-state supercapacitors

Nanoscale ◽  
2018 ◽  
Vol 10 (25) ◽  
pp. 12003-12010 ◽  
Author(s):  
Yingchang Jiang ◽  
Zeyi Wu ◽  
Le Jiang ◽  
Zhichang Pan ◽  
Peiyu Yang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Solid State ◽  
Energy Density ◽  
High Voltage ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Nanotube Composite ◽  
Composite Paper

Freestanding paper consisting of ultrathin CoSeO3·H2O nanoribbons and carbon nanotubes fabricated by a vacuum-assisted filtration strategy exhibits 2.4 V high-voltage, high energy density and excellent flexibility for solid-state supercapacitors.

scholarly journals Facile synthesis of carbon nanotube-supported NiO//Fe2O3 for all-solid-state supercapacitors

2019 ◽  
Vol 10 ◽  
pp. 1923-1932 ◽  
Author(s):  
Shengming Zhang ◽  
Xuhui Wang ◽  
Yan Li ◽  
Xuemei Mu ◽  
Yaxiong Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Solid State ◽  
Metal Oxides ◽  
Reduction Method ◽  
High Capacity ◽  
Rate Capability ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth

We have successfully prepared iron oxide and nickel oxide on carbon nanotubes on carbon cloth for the use in supercapacitors via a simple aqueous reduction method. The obtained carbon cloth–carbon nanotube@metal oxide (CC-CNT@MO) three-dimensional structures combine the high specific capacitance and rich redox sites of metal oxides with the large specific area and high electrical conductivity of carbon nanotubes. The prepared CC-CNT@Fe2O3 anode reaches a high capacity of 226 mAh·g−1 at 2 A·g−1 with a capacitance retention of 40% at 40 A·g−1. The obtained CC-CNT@NiO cathode exhibits a high capacity of 527 mAh·g−1 at 2 A·g−1 and an excellent rate capability with a capacitance retention of 78% even at 40 A·g−1. The all-solid-state asymmetric supercapacitor fabricated with these two electrodes delivers a high energy density of 63.3 Wh·kg−1 at 1.6 kW·kg−1 and retains 83% of its initial capacitance after 5000 cycles. These results demonstrate that our simple aqueous reduction method to combine CNT and metal oxides reveals an exciting future in constructing high-performance supercapacitors.

A high voltage solid state symmetric supercapacitor based on graphene–polyoxometalate hybrid electrodes with a hydroquinone doped hybrid gel-electrolyte

2015 ◽  
Vol 3 (46) ◽  
pp. 23483-23492 ◽  
Author(s):  
Deepak P. Dubal ◽  
Jullieth Suarez-Guevara ◽  
Dino Tonti ◽  
Eduardo Enciso ◽  
Pedro Gomez-Romero
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Voltage ◽  
High Energy ◽  
Gel Electrolyte ◽  
High Energy Density ◽  
Hybrid Gel ◽  
Symmetric Supercapacitor

Development of high energy density hybrid electrode based on rGO–PMo12 for all-solid state supercapacitors along with actual demonstration of lighting of thirty one LEDs (NEO).

Sign in / Sign up

Export Citation Format

Share Document