Three-dimensional freestanding hierarchically porous carbon materials as binder-free electrodes for supercapacitors: high capacitive property and long-term cycling stability

2016 ◽  
Vol 4 (15) ◽  
pp. 5623-5631 ◽  
Author(s):  
Fujun Miao ◽  
Changlu Shao ◽  
Xinghua Li ◽  
Kexin Wang ◽  
Na Lu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Three Dimensional ◽  
Hierarchically Porous ◽  
Symmetric Supercapacitor ◽  
Binder Free ◽  
Capacitive Property ◽  
Electrodes For Supercapacitors

Three-dimensional freestanding hierarchically porous carbon was successfully fabricated and assembled in a symmetric supercapacitor presenting outstanding electrochemical performance.

Interconnected CuS nanowalls with rough surfaces grown on nickel foam as high-performance electrodes for supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 59976-59983 ◽  
Author(s):  
Yan Zhang ◽  
Jie Xu ◽  
Yayun Zheng ◽  
Xiaoyang Hu ◽  
Yuanyuan Shang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Rough Surfaces ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Synthetic Route ◽  
Ni Foam ◽  
Binder Free ◽  
Excellent Cycling Stability ◽  
Electrodes For Supercapacitors

Three-dimensional interconnected CuS nanowalls with rough surfaces on Ni foam were obtained through a facial ​ synthetic route. The binder-free electrode exhibits high electrochemical performance with excellent cycling stability.

scholarly journals The carbonization of aromatic molecules with three-dimensional structures affords carbon materials with controlled pore sizes at the Ångstrom-level

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Tomoki Ogoshi ◽  
Yuma Sakatsume ◽  
Katsuto Onishi ◽  
Rui Tang ◽  
Kazuma Takahashi ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Carbon Sources ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Thermal Polymerization ◽  
Sodium Ion Battery ◽  
Pore Sizes ◽  
Aromatic Molecules ◽  
Template Methods

AbstractCarbon materials with controlled pore sizes at the nanometer level have been obtained by template methods, chemical vapor desorption, and extraction of metals from carbides. However, to produce porous carbons with controlled pore sizes at the Ångstrom-level, syntheses that are simple, versatile, and reproducible are desired. Here, we report a synthetic method to prepare porous carbon materials with pore sizes that can be precisely controlled at the Ångstrom-level. Heating first induces thermal polymerization of selected three-dimensional aromatic molecules as the carbon sources, further heating results in extremely high carbonization yields (>86%). The porous carbon obtained from a tetrabiphenylmethane structure has a larger pore size (4.40 Å) than those from a spirobifluorene (4.07 Å) or a tetraphenylmethane precursor (4.05 Å). The porous carbon obtained from tetraphenylmethane is applied as an anode material for sodium-ion battery.

Free-standing graphene-based porous carbon films with three-dimensional hierarchical architecture for advanced flexible Li–sulfur batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 9438-9445 ◽  
Author(s):  
Chao Wu ◽  
Lijun Fu ◽  
Joachim Maier ◽  
Yan Yu
Keyword(s):  
Porous Carbon ◽  
Three Dimensional ◽  
Carbon Films ◽  
Hierarchical Architecture ◽  
Free Standing ◽  
Hierarchically Porous

A novel free-standing cathode film consisting of hierarchically porous carbon-encapsulated sulfur has been designed and fabricated for Li–sulfur batteries.

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