Laser Irradiation-Hindered Growth of Small-Diameter Single-Walled Carbon Nanotubes by Chemical Vapor Deposition-Reference-Cited by-同舟云学术

Laser Irradiation-Hindered Growth of Small-Diameter Single-Walled Carbon Nanotubes by Chemical Vapor Deposition

Published:2019-05-27 Issue: Volume:2019 Page:1-7
ISSN:1687-4110
Container-title:Journal of Nanomaterials
language:en
Short-container-title:Journal of Nanomaterials

Author:

Fu Yunlei¹,Zhang Xiuyun²,Lao Chunfeng³^ORCID,Shang Danhong⁴,He Maoshuai¹⁵^ORCID

Affiliation:

1. Key Laboratory of Eco-Chemical Engineering, Ministry of Education, Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology, College of Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

2. College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China

3. Haier Smart Technology R&D Co. Ltd., No. 1 Haier Road, Qingdao 266101, China

4. School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

5. School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China

Abstract

SWNTs are synthesized on a Co/MgO catalyst using “laser-disturbed” CVD with CO as the carbon source. Compared with SWNTs grown by thermal CVD without laser irradiation (normal CVD), SWNTs synthesized under laser irradiation demonstrate the suppression of small-diameter SWNT growth, as indicated by Raman spectroscopy. Such a phenomenon is also observed for other supported catalysts, such as Co/SiO2 and Fe/MgO. Controlled experiments were carried out to clarify the effects of lasers. On the one hand, laser irradiation increases the reaction temperature locally, favoring the growth of SWNTs at a set temperature as low as 350°C. On the other hand, laser irradiation inhibits the nucleation of small SWNT caps, leading to the growth of large-diameter SWNT species. This work opens a new avenue for growing SWNTs with controlled diameters.

Funder

Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology

Publisher

Hindawi Limited

Subject

General Materials Science

Link

http://downloads.hindawi.com/journals/jnm/2019/4380435.pdf

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