Preparation of the Carbon Nanotube / Carbon Fiber Composite and Application as the Electrode Material of the Electrochemical Super Capacitor

2011 ◽  
Vol 687 ◽  
pp. 158-162 ◽  
Author(s):  
Qi Jiang ◽  
Rong Yang ◽  
Guang Gang Fu ◽  
De Yu Xie ◽  
Bin Huang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Fiber Composite ◽  
Chemical Vapor ◽  
Electrochemical Performances ◽  
Carbon Fiber Composite ◽  
Super Capacitor ◽  
Current Collection ◽  
Spray Method

Carbon nanotube (CNT) / carbon fiber (CF) composite was prepared by growing CNT in situ on the CF surface with catalytic chemical vapor deposition. The morphology of the obtained composite was characterized by the scanning electron microscopy. The results show that the CNT is trimly and equably grown on the CF surface. The obtained CNT/CF composite is covered with a layer of nickel (Ni) as a current collection on one side of the composite through the spray method. Then, the obtained materials were assembled to electrochemical super capacitors to characterize their electrochemical performances. The results show that the specific capacitance of the composite could be up to 105.4 F•g-1(organic electrolyte), which is much higher than those of the pure CNT and the CF (about 25.0 and 62.2F•g-1, respectively). These experimental results show that CNT grown in situ on the CF surface is a simple and feasible method to enhance the composite electrochemical performances.

scholarly journals Electrochemical fabrication and evaluation of a self-standing carbon nanotube/carbon fiber composite electrode for lithium-ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (57) ◽  
pp. 33117-33123 ◽  
Author(s):  
Yi-Hung Liu ◽  
Heng-Han Lin ◽  
Tsung-Yu Tsai ◽  
Chun-Han Hsu
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Composite Electrode ◽  
Fiber Composite ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Carbon Fiber Composite ◽  
Binder Free ◽  
Electrochemical Fabrication ◽  
Battery Anode

A binder-free CNT/CF composite electrode is developed via electrophoretic deposition, offering favorable electrochemical performances and stability as a self-standing lithium-ion battery anode.

Hybrid Supercapacitors Based on Polyaniline/Activated Carbon Fiber Composite Electrode Materials

2013 ◽  
Vol 800 ◽  
pp. 505-508 ◽  
Author(s):  
Zheng Jin ◽  
Yuan Tian ◽  
Lin Jie Su ◽  
Chuan Li Qin ◽  
Dong Yu Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Electrode Materials ◽  
Fiber Composite ◽  
Surface Profile ◽  
Activated Carbon Fiber ◽  
Electrochemical Performances ◽  
Carbon Fiber Composite ◽  
Super Capacitor ◽  
Hybrid Supercapacitors

This essay describes the findings of generating the electrode composite of polyaniline/activated carbon fiber ( PANI/ACF) by repeatedly immersing eigenstate PANI into the solution of NMP and CHCl3 added with VC. A samples surface profile and structure were represented using SEM and FT-IR. Thereafter the composite was assembled into a super capacitor, electrochemical performances of which were then tested through cyclic voltammetry (CV). The result showed that the specific capacitance of this composite is up to 531.75F/g in the solution of 6 mol·L-1 KOH.

Facile in situ preparation of high-performance epoxy vitrimer from renewable resources and its application in nondestructive recyclable carbon fiber composite

2019 ◽  
Vol 21 (6) ◽  
pp. 1484-1497 ◽  
Author(s):  
Sheng Wang ◽  
Songqi Ma ◽  
Qiong Li ◽  
Xiwei Xu ◽  
Binbo Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Renewable Resources ◽  
High Performance ◽  
Fiber Composite ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite ◽  
In Situ Preparation

A high-performance epoxy vitrimer was facilely prepared from a renewable lignin derivative vanillin, and its carbon-fiber composites were nondestructively recycled.

Modeling the Compressive Buckling Strain as a Function of the Nanocomposite Interphase Thickness in a Carbon Nanotube Sheet Wrapped Carbon Fiber Composite

2019 ◽  
Vol 86 (10) ◽  
Author(s):  
Xuemin Wang ◽  
Tingge Xu ◽  
Rui Zhang ◽  
Monica Jung de Andrade ◽  
Pruthul Kokkada ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Polymer Matrix Composites ◽  
Fiber Composite ◽  
Unidirectional Composite ◽  
Interfacial Shear ◽  
Carbon Fiber Composite ◽  
Interphase Region

Polymer matrix composites have high strengths in tension. However, their compressive strengths are much lower than their tensile strengths due to their weak fiber/matrix interfacial shear strengths. We recently developed a new approach to fabricate composites by overwrapping individual carbon fibers or fiber tows with a carbon nanotube sheet and subsequently impregnate them into a matrix to enhance the interfacial shear strengths without degrading the tensile strengths of the carbon fibers. In this study, a theoretical analysis is conducted to identify the appropriate thickness of the nanocomposite interphase region formed by carbon nanotubes embedded in a matrix. Fibers are modeled as an anisotropic elastic material, and the nanocomposite interphase region and the matrix are considered as isotropic. A microbuckling problem is solved for the unidirectional composite under compression. The analytical solution is compared with finite element simulations for verification. It is determined that the critical load at the onset of buckling is lower in an anisotropic carbon fiber composite than in an isotropic fibfer composite due to lower transverse properties in the fibers. An optimal thickness for nanocomposite interphase region is determined, and this finding provides a guidance for the manufacture of composites using aligned carbon nanotubes as fillers in the nanocomposite interphase region.

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