Formation of carbon nanotubes in water by the electric-arc technique |
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| Affiliation: | 1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, PR China;2. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China;1. Department of Electronic Engineering, Graduate School of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan;2. Dalian Jiaotong University, No. 794, Huanghe Road, Shahekou District, Dalian 116028, China;3. Advanced Science Institute, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan;4. Ningbo Institute of Materials Industry Innovation, No. 12, Lane 689, Changxing Road, Jiangbei, Ningbo, Zhejiang, China;5. Institute for Solid State Physics, University of Tokyo, Chiba 277-8581, Tokyo, Japan;1. Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952 Gdansk, Poland;2. Institute of Physics, Pomeranian University in Slupsk, Arciszewskiego 22b, 76-200 Slupsk, Poland |
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| Abstract: | A simplified arc discharge apparatus was used for growing carbon nanotubes, required only water (solution) in a glass container with no need for vacuum, water-cooled chamber. Carbon nanotubes with highest purity (20%) and highest yield (7 mg/min) were obtained when using salt solution as the medium. Resonance Raman spectrum of multi-walled carbon nanotubes (MWNTs) presented in as-grown materials was measured and RBM peaks originating from very thin core nanotubes were observed. The results show that high-quality MWNTs can be effectively prepared in water-arcing process. |
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