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首页> 外文期刊>ACS applied materials & interfaces >Alignment of Carbon Nanotubes in Carbon Nanotube Fibers Through Nanoparticles: A Route for Controlling Mechanical and Electrical Properties
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Alignment of Carbon Nanotubes in Carbon Nanotube Fibers Through Nanoparticles: A Route for Controlling Mechanical and Electrical Properties

机译：碳纳米管纤维通过纳米颗粒对准碳纳米管：控制机电性能的途径

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This is the first study that describes how semiconducting ZnO can act as an alignment agent in carbon nanotubes (CNTs) fibers. Because of the alignment of CNTs through the ZnO nanoparticles linking groups, the CNTs inside the fibers were equally distributed by the attraction of bonding forces into sheetlike bunches, such that any applied mechanical breaking load was equally distributed to each CNT inside the fiber, making them mechanically robust against breaking loads. Although semiconductive ZnO nanoparticles were used here, the electrical conductivity of the aligned CNT fiber was comparable to bare CNT fibers, suggesting that the total electron movement through the CNTs inside the aligned CNT fiber is not disrupted by the insulating behavior of ZnO nanoparticles. A high degree of control over the electrical conductivity was also demonstrated by the ZnO nanoparticles, working as electron movement bridges between CNTs in the longitudinal and crosswise directions. Well-organized surface interface chemistry was also observed, which supports the notion of CNT alignment inside the fibers. This research represents a new area of surface interface chemistry for interfacially linked CNTs and ZnO nanomaterials with improved mechanical properties and electrical conductivity within aligned CNT fibers.
机译：这是第一研究，描述半导体ZnO如何充当碳纳米管（CNT）纤维中的对准剂。由于CNT通过ZnO纳米颗粒连接基团的对准，纤维内的CNT通过粘合力的吸引力分布到片状束中，使得任何施加的机械破碎载荷被同等地分布在纤维内部的每个CNT中，使它们机械稳健地防止破碎载荷。尽管这里使用半导体ZnO纳米颗粒，但是对准的CNT纤维的导电性与裸CNT纤维相当，表明通过对准的CNT纤维内的CNT的总电子移动不会被ZnO纳米颗粒的绝缘行为中断。通过ZnO纳米颗粒还证明了对电导率的高度控制，作为电子运动桥在纵向和横向方向上的CNT之间。还观察到良好组织的表面界面化学，其支持纤维内的CNT对准的概念。该研究代表了具有改善的机械性能和对准CNT纤维内的机械性能和导电性的界面连接的CNT和ZnO纳米材料的表面界面化学的新领域。

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