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《科学》 第392卷 第6796期 · 2026年4月23日 · 中文解读

插层碳纳米管纤维实现高比电导率

Intercalated carbon nanotube fibers with high specific electrical conductivity · A. I. de Isidro-Gómez et al.
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本文报道了通过将四氯铝酸根阴离子插层到高度取向的双壁碳纳米管纤维中,显著提高其电导率,达到铜的41%,且比电导率优于金属。
原文开头
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。
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