物理学进展2025，Vol.45Issue(1)：47-54,8.DOI:10.13725/j.cnki.pip.2025.01.003
宏量制备导电属性可控的高质量单壁碳纳米管
Mass Production of High-Quality Single-Wall Carbon Nanotubes with Controllable Conductive Properties
摘要
Abstract
Single-wall carbon nanotubes(SWCNTs)are highly promising due to their exceptional electrical conductivity,mechanical strength,and thermal properties.Currently,the floating catalyst chemical vapor deposition(FCCVD)method is a common approach for large-scale production of SWCNTs.However,the purity and quality of SWCNTs obtained by this method are insufficient,and the electrical properties of the samples are poorly controllable.The coexistence of metallic single-walled carbon nanotubes(m-SWCNTs)and semiconducting single-walled carbon nanotubes(s-SWCNTs)limits further applications.To achieve continuous growth of high-quality,high-purity SWCNTs with a controllable electrical property,this paper proposes a method that involves placing a plug to retain SWCNTs in the high-temperature zone for sustained growth and applying an electric field to selectively grow SWCNTs with a single electrical property,ultimately resulting in high-purity semiconducting-enriched SWCNTs.We systematically analyze the purity of SWCNTs and the proportion of s-SWCNTs using optical images,thermogravimetric analysis,and scanning electron microscopy.This work provides a solution for the large-scale production of high-quality,high-purity SWCNTs and is expected to accelerate the industrial application of SWCNTs.关键词
单壁碳纳米管/浮动催化剂化学气相沉积法/可控制备/半导体性Key words
single-wall carbon nanotubes/floating catalytic chemical vapor deposition method/controllable preparation/semiconducting分类
数理科学引用本文复制引用
杨可汉,王超,袁国文,高力波..宏量制备导电属性可控的高质量单壁碳纳米管[J].物理学进展,2025,45(1):47-54,8.基金项目
感谢戴耀民教授和刘哲、周小强在样品吸收光谱表征中提供的设备与帮助,感谢黄子翀、万子豪协助设备搭建和SEM表征.感谢国家自然科学基金项目(No.52425203、12104218)和江苏省攀登项目(No.BK20240008)的资助. （No.52425203、12104218）
