Preparation of Multi-walled Carbon Nanotubes with Ni/SiO2Composites

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Abstract

Using carbon monoxide as carbon source to manufacture Multi-walled carbon nanotubes on the supported of Ni/SiO2 by chemical vapor deposition. The effects of nickel loading and raw gas to carbon nanotubes were studied. When the content of Ni is 5%, the yield of carbon is very low. As the content of Ni increases from 5% to 35%, the yield gradually increases. When Ni loading exceeds 35%, the yield of carbon decreases. Through the TEM, HRTEM and XRD to characterized carbon nanotubes. The results showed that the morphology of carbon nanotubes became worse with the Ni conten increased In terms of yield and quality,the best synthesis temperature is 600°C. In the absence of hydrogen in the feedgas, the diameter of carbon nanotubes is in the narrow range of 10 to 20 nm. When hydrogen is introduced into the system, the amount of carbon increases, but the form deteriorates.

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APA

Wang, S. (2023). Preparation of Multi-walled Carbon Nanotubes with Ni/SiO2Composites. In Journal of Physics: Conference Series (Vol. 2468). Institute of Physics. https://doi.org/10.1088/1742-6596/2468/1/012008

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