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Synthesis, characterisation and applications of core–shell carbon–hexagonal boron nitride nanotubes
Nanoscale Advances ( IF 4.7 ) Pub Date : 2020-09-10 , DOI: 10.1039/d0na00583e
Ruth Sang Jones 1, 2, 3, 4 , Barbara Maciejewska 1, 2, 3, 4 , Nicole Grobert 1, 2, 3, 4, 5
Affiliation  

Heteroatomic nanotubes consisting of graphitic carbon (g-C) and hexagonal boron nitride (h-BN) were first synthesised over two decades ago, representing the earliest example of a carbon nanotube (CNT) covalently doped with h-BN. This opened up a exiting new field of study into BxCyNz heteronanotubes that exhibit tunable electronic properties based on stoichiometry. Increased research focus on such heteronanotubes has also led to the development of novel configurations of g-C and h-BN in van der Waals type hybrids. In particular, heteronanotubes consisting of a core CNT sheathed with h-BN, coaxial shell layers (CNT@BN), have recently witnessed advances in their synthesis and exploitation. CNT@BNs exhibit superior thermal stability, chemical inertness and mechanical robustness in comparison to CNTs, whilst the h-BN also adds the rare duo of thermal conduction pathways and electrical insulation. The various synthesis methods yield a range of different structure, crystallinity and composition profiles in CNT@BN. Here, we review the current methods of CNT@BN production and characterisation and highlight the prospect for application of these heteronanotubes in high temperature composites, nano-mechanical components, nano-electronics, field emitters and thermal management materials, and propose future avenues of research.

中文翻译:

核-壳碳六方氮化硼纳米管的合成,表征和应用

由石墨碳(gC)和六方氮化硼(h-BN)组成的杂原子纳米管是在二十多年前首次合成的,代表了共价掺杂h-BN的碳纳米管(CNT)的最早实例。这为B x C y N z开辟了一个新的研究领域。具有基于化学计量的可调电子特性的异质纳米管。对这类异质纳米管的研究越来越多,也导致了范德华(van der Waals)型杂种中gC和h-BN的新构型的发展。尤其是,由包覆有h-BN的核心CNT,同轴壳层(CNT @ BN)组成的异质纳米管最近在合成和开发方面取得了进展。与CNT相比,CNT @ BN具有更好的热稳定性,化学惰性和机械强度,而h-BN也增加了罕见的热传导途径和电绝缘性。各种合成方法在CNT @ BN中产生了一系列不同的结构,结晶度和组成轮廓。这里,
更新日期:2020-09-16
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