Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor

2008 ◽  
Vol 185 (2) ◽  
pp. 1563-1568 ◽  
Author(s):  
Da-Wei Wang ◽  
Feng Li ◽  
Hui-Ming Cheng
Keyword(s):  
Nickel Oxide ◽  
Electrode Materials ◽  
Asymmetric Supercapacitor ◽  
Porous Nickel ◽  
Hierarchical Porous

Asymmetric supercapacitors based on nano-architectured nickel oxide/graphene foam and hierarchical porous nitrogen-doped carbon nanotubes with ultrahigh-rate performance

2014 ◽  
Vol 2 (9) ◽  
pp. 3223-3230 ◽  
Author(s):  
Huanwen Wang ◽  
Huan Yi ◽  
Xiao Chen ◽  
Xuefeng Wang
Keyword(s):  
Carbon Nanotubes ◽  
Nickel Oxide ◽  
Asymmetric Supercapacitor ◽  
Rate Performance ◽  
Asymmetric Supercapacitors ◽  
Graphene Foam ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Negative Electrodes ◽  
Nitrogen Doped Carbon

An asymmetric supercapacitor with ultrahigh-rate performance is fabricated using NiO/GF and hierarchical N-doped CNTs as positive and negative electrodes, respectively.

Hierarchical porous nickel oxide–carbon nanotubes as advanced pseudocapacitor materials for supercapacitors

2013 ◽  
Vol 561-562 ◽  
pp. 68-73 ◽  
Author(s):  
Aldwin D. Su ◽  
Xiang Zhang ◽  
Ali Rinaldi ◽  
Son T. Nguyen ◽  
Huihui Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Nickel Oxide ◽  
Porous Nickel ◽  
Hierarchical Porous

3D hierarchical porous N-doped carbon quantum dots/vanadium nitride hybrid microflowers as a superior electrode material toward high-performance asymmetric capacitive deionization

2021 ◽  
Author(s):  
Jingxuan Zhao ◽  
Zhibo Zhao ◽  
Yang Sun ◽  
Xiangdong Ma ◽  
Meidan Ye ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrode Material ◽  
High Performance ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Carbon Quantum Dots ◽  
Vanadium Nitride ◽  
Capacitive Deionization ◽  
Hierarchical Porous

Taking into account of time-confusing preparation processing and unsatisfied desalination capacity of carbon nanomaterials, exploring efficient electrode materials remains a great challenge for practical capacitive deionization (CDI) application. In this...

Vacancies-engineered MoO3 and Na+-preinserted MnO2 in-situ grown N-doped graphene nanotubes as electrode materials for high-performance asymmetric supercapacitor

2021 ◽  
Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Energy ◽  
Cooperative Effect ◽  
Electrochemical Energy Storage ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Doped Graphene ◽  
Power Densities

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...

scholarly journals Mechanochemistry-assisted synthesis of hierarchical porous carbons applied as supercapacitors

2017 ◽  
Vol 13 ◽  
pp. 1332-1341 ◽  
Author(s):  
Desirée Leistenschneider ◽  
Nicolas Jäckel ◽  
Felix Hippauf ◽  
Volker Presser ◽  
Lars Borchardt
Keyword(s):  
Electrode Materials ◽  
Liquid Electrolyte ◽  
High Specific Surface Area ◽  
Mechanochemical Reaction ◽  
Porous Carbons ◽  
Ionic Liquid Electrolyte ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Double Layer Capacitors ◽  
Solvent Free Synthesis

A solvent-free synthesis of hierarchical porous carbons is conducted by a facile and fast mechanochemical reaction in a ball mill. By means of a mechanochemical ball-milling approach, we obtained titanium(IV) citrate-based polymers, which have been processed via high temperature chlorine treatment to hierarchical porous carbons with a high specific surface area of up to 1814 m2 g−1 and well-defined pore structures. The carbons are applied as electrode materials in electric double-layer capacitors showing high specific capacitances with 98 F g−1 in organic and 138 F g−1 in an ionic liquid electrolyte as well as good rate capabilities, maintaining 87% of the initial capacitance with 1 M TEA-BF4 in acetonitrile (ACN) and 81% at 10 A g−1 in EMIM-BF4.

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