Surface nitrogen-modified 2D titanium carbide (MXene) with high energy density for aqueous supercapacitor applications

2019 ◽  
Vol 7 (10) ◽  
pp. 5416-5425 ◽  
Author(s):  
Yapeng Tian ◽  
Wenxiu Que ◽  
Yangyang Luo ◽  
Chenhui Yang ◽  
Xingtian Yin ◽  
...  
Keyword(s):  
Energy Density ◽  
Titanium Carbide ◽  
Functional Groups ◽  
Significant Contribution ◽  
Surface Characteristics ◽  
High Energy ◽  
High Energy Density ◽  
Supercapacitor Applications

Nitrogen related functional groups modify the surface characteristics of Ti3C2Txto make significant contribution to the intercalation-pseudocapacitance of supercapacitors.

Titanium carbide sheet based high performance wire type solid state supercapacitors

2017 ◽  
Vol 5 (12) ◽  
pp. 5726-5736 ◽  
Author(s):  
Karthikeyan Krishnamoorthy ◽  
Parthiban Pazhamalai ◽  
Surjit Sahoo ◽  
Sang-Jae Kim
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Titanium Carbide ◽  
High Performance ◽  
High Energy ◽  
High Energy Density

Wire type supercapacitors fabricated using titanium carbide sheets derived from Ti2AlC provide a high energy density of 210 nW h cm−1.

scholarly journals Ultra-high energy density supercapacitors using a nickel phosphide/nickel/titanium carbide nanocomposite capacitor electrode

Nanoscale ◽  
2020 ◽  
Vol 12 (25) ◽  
pp. 13618-13625
Author(s):  
Jing Xu ◽  
Nianjun Yang ◽  
Siyu Yu ◽  
Anna Schulte ◽  
Holger Schönherr ◽  
...  
Keyword(s):  
Energy Density ◽  
Titanium Carbide ◽  
High Energy ◽  
Nickel Titanium ◽  
Low Energy ◽  
High Energy Density ◽  
Nickel Phosphide ◽  
Ultra High Energy

The low energy density of traditional supercapacitors has strongly restricted their applications.

Fluorine-Doped Fe2O3as High Energy Density Electroactive Material for Hybrid Supercapacitor Applications

2013 ◽  
Vol 9 (3) ◽  
pp. 852-857 ◽  
Author(s):  
Kaliyappan Karthikeyan ◽  
Samuthirapandian Amaresh ◽  
Sol Nip Lee ◽  
Vanchiappan Aravindan ◽  
Yun Sung Lee
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Hybrid Supercapacitor ◽  
Electroactive Material ◽  
Supercapacitor Applications

A HIGH ENERGY DENSITY ZINC/OXYGEN BATTERY SYSTEM

1966 ◽  
Author(s):  
S. CHODOSH ◽  
E. KATSOULIS ◽  
M. ROSANSKY
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Battery System

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Sign in / Sign up

Export Citation Format

Share Document