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|a 10.1002/adma.202008432
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|a eng
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1 |
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|a Bulmer, John S
|e verfasserin
|4 aut
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|a A Meta-Analysis of Conductive and Strong Carbon Nanotube Materials
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a Date Revised 13.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a A study of 1304 data points collated over 266 papers statistically evaluates the relationships between carbon nanotube (CNT) material characteristics, including: electrical, mechanical, and thermal properties; ampacity; density; purity; microstructure alignment; molecular dimensions and graphitic perfection; and doping. Compared to conductive polymers and graphitic intercalation compounds, which have exceeded the electrical conductivity of copper, CNT materials are currently one-sixth of copper's conductivity, mechanically on-par with synthetic or carbon fibers, and exceed all the other materials in terms of a multifunctional metric. Doped, aligned few-wall CNTs (FWCNTs) are the most superior CNT category; from this, the acid-spun fiber subset are the most conductive, and the subset of fibers directly spun from floating catalyst chemical vapor deposition are strongest on a weight basis. The thermal conductivity of multiwall CNT material rivals that of FWCNT materials. Ampacity follows a diameter-dependent power-law from nanometer to millimeter scales. Undoped, aligned FWCNT material reaches the intrinsic conductivity of CNT bundles and single-crystal graphite, illustrating an intrinsic limit requiring doping for copper-level conductivities. Comparing an assembly of CNTs (forming mesoscopic bundles, then macroscopic material) to an assembly of graphene (forming single-crystal graphite crystallites, then carbon fiber), the ≈1 µm room-temperature, phonon-limited mean-free-path shared between graphene, metallic CNTs, and activated semiconducting CNTs is highlighted, deemphasizing all metallic helicities for CNT power transmission applications
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|a Journal Article
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|a Review
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|a carbon nanotubes
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|a conductive polymers
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|a graphitic intercalation compounds
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|a meta-analysis
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1 |
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|a Kaniyoor, Adarsh
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1 |
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|a Elliott, James A
|e verfasserin
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|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 36 vom: 24. Sept., Seite e2008432
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|g volume:33
|g year:2021
|g number:36
|g day:24
|g month:09
|g pages:e2008432
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