Synthesis of carbon nanotube fibers from carbon precursors with low decomposition temperatures using a direct spinning process

Lee, Sung-Hyun; Kim, Hyerim; Lee, Taeseon; Lee, Haemin; Lee, Jun Young; Lee, Jaegeun; Park, Junbeom; Lee, Kun-Hong

doi:10.1016/j.carbon.2017.08.064

Cited by 23 publications

(20 citation statements)

References 45 publications

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“…Material characterisation: 2015 [131], 2016 [132,133,134,42,135,136,137,138], 2017 [36,43,139,60,101,140,141,142,143,144,145,146,147,148,149], 2018 to date [38,150,151,152,153,154]. Synthesis papers: 2012 [155,156], 2013 [157], 2014 [158], 2016 [159,160,34,161,162,163,61], 2017 [59,164,165,166], 2018 to date [167] [18], 2007 [28,168], 2010 [26,…”

Section: Parameter Measurement and Characterisationmentioning

confidence: 99%

Mapping the parameter space for direct-spun carbon nanotube aerogels

Weller

Smail

Elliott

et al. 2019

Carbon

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Section: Parameter Measurement and Characterisationmentioning

confidence: 99%

Mapping the parameter space for direct-spun carbon nanotube aerogels

Weller

Smail

Elliott

et al. 2019

Carbon

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“…Similar work has been reported by Jung et al 22 where the major focus was on controlling the crystalline quality of CNTs during FC−CVD process. Lee et al 23 reported synthesis of macrostructure of CNT, that is, fibers using various carbon precursors such as methane, ethylene, and acetylene. They found that the type of carbon precursor had profound effect on the defect density present in the final product i.e.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Carbon Nanotube Aerogel Synthesis using Floating Catalyst Chemical Vapor Deposition

Yadav

Dasgupta

2021

Ind. Eng. Chem. Res.

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Kinetics of formation of carbon nanotube aerogel (CNT-a) by floating catalyst chemical vapor deposition (FC–CVD) has been studied for the first time by thermocatalytic decomposition of ethanol using ferrocene and thiophene as the catalyst and promoter, respectively. Effects of temperature (1423–1573 K), catalyst concentration (1.2–6.5 Pa), and partial pressure of ethanol (120–300 kPa) on the rate of formation of CNT-a have been investigated. The activation energy for the formation of CNT-a was calculated to be 38.5 kJ mol–1. Various kinetic models were used to determine the rate limiting step(s). Irreversible dissociation of adsorbed ethanol followed by decomposition of the adsorbed ethyl group was found to be rate controlling step for the formation of CNT-a. The atomic ratios of Fe/S and Fe/C were found to have profound effects on the type of CNTs present in CNT-a as characterized by the scanning electron microscopy and Raman spectroscopy.

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“…The number of walls, and length and diameter of the CNTs are affected by the type of carbon source, the concentration of the catalyst and promotor, the hydrogen gas flow rate, and the pyrolysis temperature. Carbon sources such as aromatics (e.g., benzene), alkanes (e.g., methane and hexane), alkenes, alcohols (e.g., methanol, ethanol, and butanol), acetone, and their mixtures have all been used to assemble CNT fibers. ,,,− It was found that O-containing species in the carbon sources reduce the formation of nonfibrous carbon and are crucial for the continuous spinning of CNT fibers, and promoters such as thiophene increase the yield of SWCNTs . Collapsed flat CNTs provide a higher contact area between each other and therefore produce a higher mechanical strength of the fiber. , The flow of the carrier gas or the generated/applied plasma can favor the alignment of CNTs into nanobundles before their assembly into a fiber.…”

Section: Fabrication Of Cfsmentioning

confidence: 99%

Carbon-Based Fibers for Advanced Electrochemical Energy Storage Devices

2020

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Advanced electrochemical energy storage devices (EESDs) that can store electrical energy efficiently while being miniature/flexible/wearable/load-bearing are much needed for various applications ranging from flexible/wearable/portable electronics to lightweight electric vehicles/aerospace equipment. Carbon-based fibers hold great promise in the development of these advanced EESDs (e.g., supercapacitors and batteries) due to their being lightweight, high electrical conductivity, excellent mechanical strength, flexibility, and tunable electrochemical performance. This review summarizes the fabrication techniques of carbon-based fibers, especially carbon nanofibers, carbon-nanotube-based fibers, and graphene-based fibers, and various strategies for improving their mechanical, electrical, and electrochemical performance. The design, assembly, and potential applications of advanced EESDs from these carbon-based fibers are highlighted. Finally, the challenges and future opportunities of carbon-based fibers for advanced EESDs are discussed.

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Synthesis of carbon nanotube fibers from carbon precursors with low decomposition temperatures using a direct spinning process

Cited by 23 publications

References 45 publications

Mapping the parameter space for direct-spun carbon nanotube aerogels

Mapping the parameter space for direct-spun carbon nanotube aerogels

Kinetics of Carbon Nanotube Aerogel Synthesis using Floating Catalyst Chemical Vapor Deposition

Carbon-Based Fibers for Advanced Electrochemical Energy Storage Devices

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