Vanadium nitride encapsulated carbon fibre networks with furrowed porous surfaces for ultrafast asymmetric supercapacitors with robust cycle life

2017 ◽  
Vol 5 (37) ◽  
pp. 19714-19720 ◽  
Author(s):  
Geon-Hyoung An ◽  
Do-Young Lee ◽  
Hyo-Jin Ahn
Keyword(s):  
Electrical Conductivity ◽  
Environmental Impact ◽  
Carbon Fibre ◽  
High Performance ◽  
Vanadium Nitride ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
Asymmetric Supercapacitors ◽  
Porous Surfaces ◽  
Significant Attention

Transition metal nitrides have received significant attention in view of their application as pseudocapacitive electrodes in high performance supercapacitors owing to their high capacitance, excellent electrical conductivity, high electrochemical selectivity, and low environmental impact.

scholarly journals Fabrication of a vanadium nitride/N-doped carbon hollow nanosphere composite as an efficient electrode material for asymmetric supercapacitors

2020 ◽  
Vol 2 (9) ◽  
pp. 3865-3871 ◽  
Author(s):  
Xin Jiang ◽  
Wei Lu ◽  
Xiaodan Yu ◽  
Shuyan Song ◽  
Yan Xing
Keyword(s):  
Electrical Conductivity ◽  
Electrode Material ◽  
Alkaline Electrolyte ◽  
Vanadium Nitride ◽  
Hollow Nanosphere ◽  
Asymmetric Supercapacitors ◽  
Electrochemical Behaviors

N-doped carbon covering on the surface of VN inhibits the oxidation of VN in alkaline electrolyte and increases the electrical conductivity of composite. Therefore, favorable electrochemical behaviors of the V2O3/C//VN/NCS device are exhibited.

scholarly journals A graphene film interlayer for enhanced electrical conductivity in a carbon-fibre/PEEK composite

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Christopher Leow ◽  
Peter B. Kreider ◽  
Christian Notthoff ◽  
Patrick Kluth ◽  
Antonio Tricoli ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Fibre ◽  
High Performance ◽  
Spray Deposition ◽  
Graphene Film ◽  
Lightning Strike ◽  
Conductivity Enhancement ◽  
Specific Strength ◽  
Si Substrates ◽  
Peek Composite

AbstractCarbon-fibre reinforced composites are seeing increased deployment, especially in the aerospace industry, and the next-generation of these materials will need to meet demanding performance requirements beyond just specific strength. The incorporation of nanomaterials such as graphene into composites has great potential for enhancing electrical, thermal, and mechanical properties, which could then enable new capabilities such as built-in lightning strike protection and electromagnetic shielding. One major challenge is successful integration of nanomaterials into the composite during the manufacturing process especially for thermoplastic based composites. This work explores the spray deposition of exfoliated graphene in liquid suspensions for the nano-enhancement of electrical properties in carbon-fibre reinforced polyether ether keytone (PEEK) composites. Developed thin films were smooth with RMS roughness of 1.06 μm on Si substrates and RMS roughness of 1.27 μm on CF-PEEK tapes. The addition of 1.3 wt% graphene into the interlayers of CF-PEEK composites resulted in bulk electrical conductivity enhancement both in plane and through thickness of ~ 1100% and 67.5% respectively. This approach allows for pre-consolidation introduction of high-performance nanomaterials directly to thermoplastic prepregs which could open simple pathways for the in-situ manufacturing of carbon-fibre reinforced polymer nanocomposites.

Core–shell structural PANI-derived carbon@Co–Ni LDH electrode for high-performance asymmetric supercapacitors

2018 ◽  
Vol 2 (6) ◽  
pp. 1350-1355 ◽  
Author(s):  
Junming Cao ◽  
La Li ◽  
Yunlong Xi ◽  
Junzhi Li ◽  
Xuexue Pan ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Specific Capacitance ◽  
Double Layer ◽  
High Performance ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
Core Shell ◽  
Asymmetric Supercapacitors ◽  
Double Layer Capacitor ◽  
Metal Nanocomposites

Carbon/metal nanocomposites have been considered promising electrode materials for application in supercapacitors owing to their combination of good electrical conductivity, excellent cycle stabilities of the electronic double layer capacitor (EDLC) and high specific capacitance of the pseudocapacitor.

Tungsten nitride-coated graphene fibers for high-performance wearable supercapacitors

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20239-20249
Author(s):  
Ali Salman ◽  
Suchithra Padmajan Sasikala ◽  
In Ho Kim ◽  
Jun Tae Kim ◽  
Gang San Lee ◽  
...  
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
High Conductivity ◽  
Metal Nitrides ◽  
Tungsten Nitride ◽  
Transition Metal Nitrides ◽  
High Capacitance ◽  
High Performance Fiber ◽  
Graphene Fibers

Transition metal nitrides can endow graphene fibers with both high conductivity and high capacitance to achieve high-performance fiber supercapacitors.

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...

Clustering of oxygen point defects in transition metal nitrides

2021 ◽  
Vol 129 (5) ◽  
pp. 055305
Author(s):  
Rajendra Kumar ◽  
Sanjay Nayak ◽  
Magnus Garbrecht ◽  
Vijay Bhatia ◽  
Ashalatha Indiradevi Kamalasanan Pillai ◽  
...  
Keyword(s):  
Transition Metal ◽  
Point Defects ◽  
Metal Nitrides ◽  
Transition Metal Nitrides

A High-Performance Free-Standing Zn Anode for Flexible Zinc-Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenxi Gao ◽  
Jiawei Wang ◽  
Yuan Huang ◽  
Zixuan Li ◽  
Jiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Free Standing ◽  
Energy Device ◽  
Zn Anode ◽  
Significant Attention

Zinc-ion batteries (ZIBs) have attracted significant attention owing to their high safety, high energy density, and low cost. ZIBs have been studied as a potential energy device for portable and...

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