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Growth of high-density single-wall carbon nanotubes with a uniform structure using a CoRu catalyst

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Title
Growth of high-density single-wall carbon nanotubes with a uniform structure using a CoRu catalyst
Author(s)
Feng Zhang; Zhang, L.; Jiang, H.; Li, X.; Fengning Liu; Ji, Z.-H.; Hou, P.-X.; Guo, S.; Cheng, H.-M.; Kauppinen, E.I.; Liu, C.; Feng Ding
Publication Date
2023-06
Journal
Carbon, v.209
Publisher
Pergamon Press Ltd.
Abstract
The inefficient production of structurally uniform single-wall carbon nanotubes (SWCNTs) is an obstacle to their practical use in high-performance electronic devices. We have synthesized SWCNTs with a narrow diameter distribution (1.35 ± 0.25 nm) using a CoRu catalyst. Monodispersed nanoparticles with a narrow size distribution (2.4 ± 0.6 nm) and different compositions were prepared and used as catalysts for SWCNT growth. A furnace with an 80 cm-long uniform temperature zone (±10 °C) was designed and used to study the effect of catalyst composition on the growth of SWCNTs under the same conditions. By optimizing the composition of the bimetallic CoRu catalyst, SWCNTs with a uniform structure were efficiently synthesized. In addition, the effect of the growth conditions of temperature and carbon feed rate was investigated, and it was found that with an increase in yield, the structural uniformity of SWCNTs usually became worse. Both catalysts with elements in the suitable proportions and appropriate growth conditions are critical to achieving the high-efficiency structure-controlled growth of SWCNTs. © 2023 Elsevier Ltd
URI
https://pr.ibs.re.kr/handle/8788114/13306
DOI
10.1016/j.carbon.2023.118011
ISSN
0008-6223
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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