Abstract Controllable synthesis of carbon nanotubes (CNTs) via autothermal reforming of ethyl acetate and waste cooking oil was studied for the first time. The products of the products were characterized by techniques of FESEM, XRD, HRTEM, Raman and XPS. Results revealed that reaction temperature, reaction time and reactants significantly affected the growth of CNTs. Ethyl acetate could be easily catalyzed into CNTs at 600 °C, which contained numerous defects and vacancies. High reaction temperatures led to the formation of CNTs with small diameter. The graphitization and purity of CNTs could be improved by increasing the reaction time. Besides, the amount of CNTs decreased by increasing the reaction time at low reaction temperature ( 2 and H 2 O in reactants reduced the formation of irregular carbon species and promoted the synthesis of CNTs with ultra-small diameter. Two growth mechanisms for synthesizing CNTs from ethyl acetate via autothermal reforming were proposed: “tip-growth” mechanism and “graphene-to-CNTs” mechanism. Furthermore, the real waste cooking oil was also successfully catalyzed into CNTs.

中文翻译：

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乙酸乙酯自热重整可控合成碳纳米管

摘要 首次研究了乙酸乙酯和废食用油自热重整可控合成碳纳米管（CNTs）。产品的产物通过FESEM、XRD、HRTEM、Raman和XPS等技术进行表征。结果表明，反应温度、反应时间和反应物对碳纳米管的生长有显着影响。乙酸乙酯在 600 °C 时可以很容易地催化成碳纳米管，碳纳米管含有许多缺陷和空位。高反应温度导致形成小直径的碳纳米管。通过增加反应时间可以提高碳纳米管的石墨化和纯度。除了，