Acta Chimica Sinica ›› 2023, Vol. 81 ›› Issue (6): 565-571.DOI: 10.6023/A23040163 Previous Articles     Next Articles



赵天成, 蒋鸿宇, 张琨, 徐一帆, 康欣悦, 胥鉴宸, 周旭峰, 陈培宁*(), 彭慧胜*()   

  1. 聚合物分子工程国家重点实验室 复旦大学高分子科学系 先进材料实验室 上海 200438
  • 投稿日期:2023-04-25 发布日期:2023-05-31
  • 基金资助:
    国家自然科学基金(T2222005); 国家自然科学基金(22175042); 上海市科委(21511104900); 上海市科委(20JC1414902)

Continuous Preparation of High-performing Carbon Nanotube Fibers Based on Cycloalkane/ethanol Mixing Carbon Source

Tiancheng Zhao, Hongyu Jiang, Kun Zhang, Yifan Xu, Xinyue Kang, Jiancheng Xu, Xufeng Zhou, Peining Chen(), Huisheng Peng()   

  1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200438
  • Received:2023-04-25 Published:2023-05-31
  • Contact: *E-mail:,
  • Supported by:
    National Natural Science Foundation of China(T2222005); National Natural Science Foundation of China(22175042); Science and Technology Commission of Shanghai Municipality(21511104900); Science and Technology Commission of Shanghai Municipality(20JC1414902)

Due to the excellent physical and chemical properties, carbon nanotubes show broad applications in a variety of fields such as composite materials, catalysis, energy, medicine and sensor. However, at present, the carbon nanotubes are mainly practically used in the form of powders. Carbon nanotube fibers can be prepared by the methods of chemical vapor deposition and/or dry spinning. However, the carbon source used in previous study mainly has single component, making the mechanical and electrical properties of carbon nanotube fibers still difficult to effectively meet the practical application requirements. It remains challenging to realize continuous preparation of high-performance carbon nanotube fibers. In this work, a new cycloalkane/ethanol mixing carbon source was designed to obviously promote the continuous growth process and properties of carbon nanotube fibers. After carefully optimizing the component ratio of decahydronaphthalene/ethanol in the precursor solution, and systematically optimizing reaction conditions such as catalyst content (ferrocene and thiophene), injection rate of the precursor solution, and the flow rate of carrier gas (argon and hydrogen), the continuous preparation of high-performance carbon nanotube fibers was realized. When the mass ratio of decahydronaphthalene to ethanol carbon source in precursor solution is 3∶7, the high-performance carbon nanotube fibers can be continuously produced for a long time with a collection rate of 220 m/h. It shows improved mechanical and electrical properties compared with the carbon nanotube fiber prepared by using single ethanol carbon source. For instance, the tensile strength of carbon nanotube fiber is increased by more than 1 time (750 MPa). The carbon nanotube fiber has good flexibility and can shows stable mechanical properties after millions of bending cycles. The conductivity is increased by more than 4 times (4.8×103 S/cm), which can effectively meet the application requirements of fiber energy-storing devices. The application of carbon nanotube fibers in a fiber-shaped lithium-carbon dioxide battery is demonstrated with good electrochemical performance.

Key words: carbon nanotube fiber, chemical vapor deposition, floating catalyst, continuous preparation, mixing carbon source