Intercalated carbon nanotube fibers with high specific electrical conductivity · A. I. de Isidro-Gómez et al.
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A. I. de Isidro-Gómez1,2, V. Vassilev-Galindo1,3,4, A. Mikhalchan1, M. Pelaez-Fernandez5,6, J. LLorca1,7, R. Arenal5,6,8, J. J. Vilatela1* Translating the conductivity of individual carbon nanotubes into practical, macroscopic conductors remains a challenge. We report highly aligned fibers of double-walled carbon nanotubes intercalated with chains of tetrachloroaluminate anions (AlCl4−) in the intertube channels. The AlCl4− intercalant acts as a noncovalent dopant, accepting 0.65 electrons per anion, mostly from the outer nanotube layer. Combined with a 17% intercalant volume fraction, it produces an increase in room-temperature conductivity to values as high as 24.5 mega-Siemens per meter, which is 41% of that of copper. Specific conductivity values reach 17,345 Siemens-meter squared per kilogram, which is superior to that of metals. …
摘自《科学》(Science)第392卷 第6796期 · 2026年4月23日,A. I. de Isidro-Gómez et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。