High-performance PAN-based carbon fibers and their performance requirements

Frank, Erik; Ingildeev, Denis; Buchmeiser, Michael R.

doi:10.1016/b978-0-08-100550-7.00002-4

Cited by 31 publications

(30 citation statements)

References 57 publications

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“…[1][2][3][4][5][6][7][8][9][10] Among several precursors fullling the requirements for producing CNFs, polyacrylonitrile (PAN) is most commonly used, not only because of its high carbon yield compared to other polymers (>50%), but also because of the exible and stable structure of the nal products as well as its low price. [11][12][13] Several methods have been reported for the fabrication of precursor carbon bres including laser ablation, arc-discharge, vapour growth, chemical vapour deposition, pressurised gyration and electrospinning. [13][14][15] Electrospinning is a wellestablished technique that has emerged with great potential to generate a wide variety of polymeric bres in numerous research areas.…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity of silver nanoparticle doped carbon nanofibres measured by CS-AFM

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Electrical conductivity of silver nanoparticle doped carbon nanofibres measured by CS-AFM

et al. 2019

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“…Therefore, it was confirmed that pristine CuPAN with a linear chain did not carbonize by laser scribing. By contrast, since the PAN polymer can be partially carbonized and cyclized through stabilization pretreatment, it can be converted into a more easily carbonized form [ 15 , 16 , 17 ]. Therefore, in S-CuPAN, broad carbon-related peaks, such as first-order scattered G- and D-bands and second-order scattered 2D-band, were observed owing to the partial graphitic structure.…”

Section: Resultsmentioning

confidence: 99%

“…By contrast, the laser scribing method has the advantage of saving time and energy by enabling local carbonization in the desired pattern in a short period [ 11 , 12 , 13 , 14 ]. Polyacrylonitrile (PAN) is a well-known precursor of carbon materials and forms an intermediate in which nitrile groups are cyclized through stabilization pretreatment [ 15 , 16 , 17 ]. Since the laser scribing method can carbonize only cyclic polymers because of the fast process time and temperature changes [ 11 ], carbon nanomaterials can be synthesized from stabilized PAN via laser scribing, resulting in the desired shape and position.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Carbon Nanomaterials Using Laser Scribing on Copper Nanoparticles-Embedded Polyacrylonitrile Films and Their Application in a Gas Sensor

Kim

Lee

et al. 2021

Polymers

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Carbon nanomaterials have attracted significant research attention as core materials in various industrial sectors owing to their excellent physicochemical properties. However, because the preparation of carbon materials is generally accompanied by high-temperature heat treatment, it has disadvantages in terms of cost and process. In this study, highly sensitive carbon nanomaterials were synthesized using a local laser scribing method from a copper-embedded polyacrylonitrile (CuPAN) composite film with a short processing time and low cost. The spin-coated CuPAN was converted into a carbonization precursor through stabilization and then patterned into a carbon nanomaterial of the desired shape using a pulsed laser. In particular, the stabilization process was essential in laser-induced carbonization, and the addition of copper promoted this effect as a catalyst. The synthesized material had a porous 3D structure that was easy to detect gas, and the resistance responses were detected as −2.41 and +0.97% by exposure to NO2 and NH3, respectively. In addition, the fabricated gas sensor consists of carbon materials and quartz with excellent thermal stability; therefore, it is expected to operate as a gas sensor even in extreme environments.

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“…Interestingly, PAN fibers with noncircular rather flat cross-sections could also be produced upon a fast coagulation process, which is attributed to the anisotropic radial deformation caused by inhomogeneous phase separation. 29 , 31 However, our flat GF has a much more planar morphology compared to the anisotropic PAN fiber owing to the extraordinary geometry of 2D GO sheets with high aspect ratio. In the case of GO/EG hybrid fibers, while the outer surface of fiber solidifies rapidly, NMP still remains in the core of the fiber such that the internal structure can be rearranged into a flat morphology, yielding dumbbell-shaped fibers.…”

Section: Results and Discussionmentioning

confidence: 99%

Self-Planarization of High-Performance Graphene Liquid Crystalline Fibers by Hydration

et al. 2020

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Graphene fibers (GFs) are promising elements for flexible conductors and energy storage devices, while translating the extraordinary properties of individual graphene sheets into the macroscopically assembled 1D structures. We report that a small amount of water addition to the graphene oxide (GO) N -methyl-2-pyrrolidone (NMP) dispersion has significant influences on the mesophase structures and physical properties of wet-spun GFs. Notably, 2 wt % of water successfully hydrates GO flakes in NMP dope to form a stable graphene oxide liquid crystal (GOLC) phase. Furthermore, 4 wt % of water addition causes spontaneous planarization of wet-spun GFs. Motivated from these interesting findings, we develop highly electroconductive and mechanically strong flat GFs by introducing highly crystalline electrochemically exfoliated graphene (EG) in the wet-spinning of NMP-based GOLC fibers. The resultant high-performance hybrid GFs can be sewn on cloth, taking advantage of the mechanical robustness and high flexibility.

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High-performance PAN-based carbon fibers and their performance requirements

Cited by 31 publications

References 57 publications

Electrical conductivity of silver nanoparticle doped carbon nanofibres measured by CS-AFM

Electrical conductivity of silver nanoparticle doped carbon nanofibres measured by CS-AFM

Fabrication of Carbon Nanomaterials Using Laser Scribing on Copper Nanoparticles-Embedded Polyacrylonitrile Films and Their Application in a Gas Sensor

Self-Planarization of High-Performance Graphene Liquid Crystalline Fibers by Hydration

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