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Research Progress on Thermal Conductivity of Graphdiyne Nanoribbons and Its Defects: A review.
Recent Patents on Nanotechnology ( IF 2 ) Pub Date : 2020-11-30 , DOI: 10.2174/1872210514666200611094435
Wenchao Tian 1 , Chunmin Cheng 1 , Chuqiao Wang 1 , Wenhua Li 1
Affiliation  

Background: Graphdiyne has a unique pi-conjugated structure, perfect pore distribution and adjustable electronic properties of sp2, sp hybrid planar framework. Due to the presence of acetylenic bonds, it has more excellent properties compared to grapheme, such as a unique structure-dependent Dirac cone, abundant carbon bonds and a large bandgap. As one of the important raw materials for nanodevices, it is extremely important to study the thermal properties of graphdiyne nanoribbon.

Objective: This paper mainly introduces and discusses recent academic research and patents on the preparation methods and thermal conductivity of graphdiyne nanoribbons. Besides, the applications in engineering and vacancy defects in the preparation process of graphdiyne are described.

Methods: Firstly, taking thermal conductivity as an index, the thermal conductivity of graphdiyne with various vacancy defects is discussed from the aspects of length, defect location and defect type. In addition, the graphdiyne nanoribbons were laterally compared with the thermal conductivity of the graphene nanoribbons.

Results: The thermal conductivity of graphdiyne with defects increases with the length and width, which is lower than the intrinsic graphdiyne. The thermal conductivity of the acetylene chain lacking one carbon atom is higher than the one lacking the benzene ring. Typically, the thermal conductivity is larger in armchair than that of zigzag in the same size. Moreover



中文翻译:

石墨二炔纳米带导热性及其缺陷的研究进展:综述。

背景:Graphdiyne具有独特的pi共轭结构,完美的孔分布和sp2,sp杂化平面框架的可调电子性能。由于存在炔键,与石墨烯相比,它具有更优异的性能,例如独特的依赖结构的狄拉克锥,丰富的碳键和大的带隙。作为纳米器件的重要原料之一,研究石墨二炔纳米带的热学性能极为重要。

目的:本文主要介绍和讨论有关石墨二炔纳米带的制备方法和导热性的最新学术研究和专利。此外,还介绍了石墨二炔在制备过程中在工程和空位缺陷中的应用。

方法:首先,以导热系数为指标,从长度,缺陷位置和缺陷类型等方面讨论了具有各种空位缺陷的石墨二炔的导热系数。另外,将石墨二炔纳米带与石墨烯纳米带的热导率横向比较。

结果:具有缺陷的石墨二炔的热导率随长度和宽度的增加而增加,低于固有的石墨二炔。缺少一个碳原子的乙炔链的热导率比没有苯环的乙炔链的热导率高。通常,扶手椅在相同尺寸下的导热系数要比之字形的导热系数大。此外

更新日期:2020-12-24
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