Research Article

Nano Research

, Volume 4, Issue 4, pp 334-342

Low temperature growth of SWNTs on a nickel catalyst by thermal chemical vapor deposition

  • Maoshuai HeAffiliated withDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University Email author 
  • , Alexander I. ChernovAffiliated withA.M. Prokhorov General Physics Institute RAS
  • , Elena D. ObraztsovaAffiliated withA.M. Prokhorov General Physics Institute RAS
  • , Jani SainioAffiliated withDepartment of Applied Physics, School of Science and Technology, Aalto University
  • , Emma RikkinenAffiliated withDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University
  • , Hua JiangAffiliated withNanomaterials Group, Department of Applied Physics and Center for New Materials, School of Science and Technology, Aalto University
  • , Zhen ZhuAffiliated withNanomaterials Group, Department of Applied Physics and Center for New Materials, School of Science and Technology, Aalto University
  • , Antti KaskelaAffiliated withNanomaterials Group, Department of Applied Physics and Center for New Materials, School of Science and Technology, Aalto University
  • , Albert G. NasibulinAffiliated withNanomaterials Group, Department of Applied Physics and Center for New Materials, School of Science and Technology, Aalto University
    • , Esko I. KauppinenAffiliated withNanomaterials Group, Department of Applied Physics and Center for New Materials, School of Science and Technology, Aalto UniversityVTT Biotechnology Email author 
    • , Marita NiemeläAffiliated withDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University
    • , Outi KrauseAffiliated withDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University

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Abstract

Single-walled carbon nanotubes (SWNTs) have been grown on a silica-supported monometallic nickel (Ni) catalyst at temperatures ranging from as low as 450 °C to 800 °C. Different spectroscopic techniques, such as Raman, photoluminescence emission (PLE), and ultra violet-visible-near infrared (UV-vis-NIR) absorption spectroscopy were used to evaluate the 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 °C. In the PLE and absorption spectra, differences were observed between the SWNTs grown on 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.

http://static-content.springer.com/image/art%3A10.1007%2Fs12274-010-0088-3/MediaObjects/12274_2010_88_Fig1_HTML.gif

Keywords

Single-walled carbon nanotubes synthesis low temperature nickel catalyst