Abstract Multi-walled carbon nanotubes (MWCNTs) could be produced from industrial slop oil via pyrolysis with the presence of ferrocene. Dependence of characteristics of the produced MWCNTs on their growth temperature and heating rate of mixtures of industrial slop oil and ferrocene was experimentally investigated. With low-molecular weighted hydrocarbon, the resultant MWCNTs with nominal diameters of 10–50 nm and yields of 45–65 wt% could be produced within a growth temperature range of 750–950 °C. Meanwhile, high-molecular weighted hydrocarbon could provide substantial yield of MWCNTs only within the growth temperature range of 850–950 °C. It was found that a higher heating rate of 9 °C/min could result in preferable production of MWCNTs with higher purity. Based on comprehensive analyses, a schematic pathway of MWCNT production via co-pyrolysis of mixtures of industrial slop oil and ferrocene was proposed.

中文翻译：

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通过工业废油和二茂铁共热解生产多壁碳纳米管对生长温度和加热速率的依赖性

摘要 多壁碳纳米管 (MWCNTs) 可以从工业废油中通过热解在二茂铁的存在下生产。实验研究了生产的 MWCNTs 的特性对其生长温度和工业废油和二茂铁混合物的加热速率的依赖性。使用低分子量碳氢化合物，可以在 750-950 °C 的生长温度范围内生产标称直径为 10-50 nm 且产率为 45-65 wt% 的多壁碳纳米管。同时，仅在 850-950 °C 的生长温度范围内，高分子量碳氢化合物才能提供可观的 MWCNTs 产量。结果表明，9 °C/min 的更高加热速率可以更好地生产具有更高纯度的 MWCNT。根据综合分析，