Low Temperature Growth of SWNTs on a Nickel Catalyst by Thermal Chemical Vapor Deposition

• Published in: Nano research 2011-04, Vol.4 (4), p.334-342
• Main Authors: He, Maoshuai, Chernov, Alexander I., Obraztsova, Elena D., Sainio, Jani, Rikkinen, Emma, Jiang, Hua, Zhu, Zhen, Kaskela, Antti, Nasibulin, Albert G., Kauppinen, Esko I., Niemelä, Marita, Krause, Outi
• Format: Article
• Language: English
• Subjects: Absorption spectroscopy; Applied physics; Atomic/Molecular Structure and Spectra; Biomedicine; Biotechnology; Carbon; Catalysts; Chemical vapor deposition; Chemistry and Materials Science; Cobalt; Condensed Matter Physics; Emission analysis; Low temperature; Materials Science; Nanomaterials; Nanostructure; Nanotechnology; Nickel; Plasma; Research Article; Science; Silica; Single wall carbon nanotubes; Spectrum analysis; SWNTs; Temperature; Tuning; 低温生长; 单壁碳纳米管; 吸收光谱; 温度范围; 热化学气相沉积; 过渡金属催化剂; 镍催化剂
• ISSN: 1998-0124; 1998-0000
• DOI: 10.1007/s12274-010-0088-3

Single-walled carbon nanotubes （SWNTs） have been grown on a silica-supported monometallic nickel （Ni） catalyst at temperatures ranging from as low as 450℃to 800℃. Different spectroscopic techniques, such as Raman, photoluminescence emission （PLE）, and ultra violet-visible-near infrared （UV-vis-NIR） absorption spectroscopy were used to evaluate file diameter and quality of the SWNTs grown over the Ni catalyst at different temperatures. The analysis revealed that high quality SWNTs with a very narrow diameter distribution were obtained at a growth temperature of 500 ℃. In the PLE and absorption spectra, differences were observed between the SWNTs grown oil Ni and those grown on cobalt （Co）. This result expands the potential of growing a specific （n, m） tube species with relatively high abundance by tuning the catalyst composition. Furthermore, the prerequisites for the low temperature growth of SWNTs over a monometallic transition metal catalyst have been elucidated.