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Synthesis of chaoite-like macrotubes at low temperature and ambient pressure |
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| Authors: | Shandong Li Guangbin Ji Zhigao Huang Fengming Zhang Youwei Du |
| Affiliation: | aDepartment of Physics, Fujian Normal University, Fuzhou 350007, China;bNational Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China;cCollege of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| Abstract: | Chaoite-like carbon was prepared by quenching the pyrolysate of acetylene gas at 873 K and ambient pressure. Its morphology is carbon macrotubes (CMTs) with 20–60 μm in diameter and up to 8 mm in length. Microstructure analysis revealed that sp-bonded carbon (SPBC) chains in CMTs are kinked and the crystal orientation is anisotropic along the length and circumference directions of CMTs. A SPBC belt scrolling model was proposed for explaining the formation process of CMTs. |
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