物理化学学报 >> 2022, Vol. 38 >> Issue (2): 2006046.doi: 10.3866/PKU.WHXB202006046

所属专题： 石墨烯的功能与应用

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石墨烯纤维材料的化学气相沉积生长方法

程熠1,2, 王坤1,2, 亓月1,2,*(), 刘忠范1,2,*()   

  1. 1 北京大学纳米化学研究中心，北京分子科学国家研究中心，北京大学化学与分子工程学院，北京 100871
    2 北京石墨烯研究院，北京 100095
  • 收稿日期:2020-06-18 录用日期:2020-07-30 发布日期:2020-08-03
  • 通讯作者: 亓月,刘忠范 E-mail:qiyue-cnc@pku.edu.cn;zfliu@pku.edu.cn
  • 作者简介:亓月，1990年出生，2018年获得北京大学博士学位。现为北京大学助理研究员，北京石墨烯研究院课题组长。主要研究方向石墨烯纤维材料的制备及应用
    刘忠范，1962年出生，1990年获东京大学博士学位。现为北京大学教授，博士生导师，北京石墨烯研究院院长，中国科学院院士。主要研究方向为石墨烯的CVD生长方法与应用
  • 基金资助:
    国家重点基础研究发展规划项目(973)(2016YFA0200103);国家自然科学基金(51520105003);国家自然科学基金(51432002);国家自然科学基金(U1904193);北京分子科学国家研究中心(BNLMS-CXTD-202001);北京市科学技术委员会(Z181100004818001)

Chemical Vapor Deposition Method for Graphene Fiber Materials

Yi Cheng1,2, Kun Wang1,2, Yue Qi1,2,*(), Zhongfan Liu1,2,*()   

  1. 1 Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
    2 Beijing Graphene Institute (BGI), Beijing 100095, China
  • Received:2020-06-18 Accepted:2020-07-30 Published:2020-08-03
  • Contact: Yue Qi,Zhongfan Liu E-mail:qiyue-cnc@pku.edu.cn;zfliu@pku.edu.cn
  • About author:Email: zfliu@pku.edu.cn (Z.L.)
    Email: qiyue-cnc@pku.edu.cn (Y.Q.)
  • Supported by:
    the National Key Basic Research Program of China (973)(2016YFA0200103);the National Natural Science Foundation of China(51520105003);the National Natural Science Foundation of China(51432002);the National Natural Science Foundation of China(U1904193);the Beijing National Laboratory for Molecular Sciences, China(BNLMS-CXTD-202001);the Beijing Municipal Science & Technology Commission, China(Z181100004818001)

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摘要：

石墨烯纤维材料是以石墨烯为主要结构基元沿某一特定方向组装而成或由石墨烯包覆纤维状基元形成的宏观一维材料。根据组成基元的不同可将石墨烯纤维材料分为石墨烯纤维和石墨烯包覆复合纤维。石墨烯纤维材料在一维方向上充分发挥了石墨烯高强度、高导电、高导热等特点，在智能纤维与织物、柔性储能器件、便携式电子器件等领域具有广阔的应用前景。随着化学气相沉积(Chemical Vapor Deposition，CVD)制备石墨烯薄膜技术的发展，CVD技术也逐渐应用于石墨烯纤维材料的制备。利用CVD法制备石墨烯纤维可避免传统纺丝工艺中繁琐的氧化石墨烯(Graphene Oxide，GO)还原过程。同时，通过CVD法直接将石墨烯沉积至纤维表面可以保证石墨烯与纤维基底之间强的粘附作用，提高复合纤维的稳定性，同时可实现对石墨烯质量的有效调控。本文综述了石墨烯纤维材料的CVD制备方法，石墨烯纤维材料优异的力学、电学、光学性质及其在智能传感、光电器件、柔性电极等领域的应用，并展望了CVD法制备石墨烯纤维材料未来的发展方向。

关键词: 化学气相沉积, 石墨烯纤维, 石墨烯玻璃纤维, 石墨烯金属纤维

Abstract:

Graphene fiber material is one type of macroscopically one-dimensional materials assembled by graphene building blocks or coating graphene on other fibrous building blocks. The typical graphene fiber materials can be classified into graphene fiber and graphene-coated hybrid fiber based on their different building blocks. This type of materials exhibits superior tensile strength, excellent electrical and thermal conductivities, making them favorable for applications in flexible energy storage devices, electromagnetic shielding and wearable electronics. Recently, the chemical vapor deposition (CVD) method, conventionally used for fabricating film-like graphene, has been widely applied to the synthesis of graphene fiber materials. For preparing graphene fiber, the use of CVD method can prevent the complicated and time-consuming reducing treatment of graphene oxide (GO), which is well known as an imperative step in the commonly used wet spinning method. For preparing graphene-coated hybrid fiber, the CVD method can achieve an efficient modulation of graphene quality, and ensure a strong adhesion between graphene and fibrous substrates. In this review, we summarized the CVD methods for fabricating graphene fiber materials, including graphene-assembled graphene fiber and graphene-coated hybrid fiber, and introduced their excellent mechanical, electrical, thermal and optical properties along with their broad applications in intelligent sensors, optoelectronic devices, and flexible electrodes. Furthermore, the challenges in synthesizing CVD-fabricated graphene fiber materials were also analyzed. This review can be briefly divided into three parts: (1) Synthesis of graphene fibers: Up to now, the CVD method is a feasible and effective way to synthesize graphene with high crystallinity. The CVD strategies for fabricating graphene fibers mainly consist of the template method, the secondary growth method, and the film-scrolling method, which can simplify the fabrication process and efficiently modulate graphene quality. (2) Synthesis of graphene glass fibers: Similar to graphene growth directly on non-catalytic glass surfaces, CVD method can also be applied to synthesize graphene on glass fibers. By modifying the experimental parameters (carbon source, pressure, temperature, etc.), high-quality graphene films with controllable thickness can be uniformly coated on glass fibers. Meanwhile, the as-fabricated graphene glass fiber can be further used as a high-performance flexible electrode, electro-optic modulator, or electrocatalyst. (3) Synthesis of graphene metal fibers: Graphene can be controllably grown on metal fibers using the CVD method. Compared to the bare metal fiber, the fabricated graphene metal fiber exhibited enhanced electrical and thermal conductivities as well as better chemical stability, which can expand its applications in ultra-thin electronics and high-power circuits.

Key words: Chemical vapor deposition, Graphene fiber, Graphene glass fiber, Graphene metal fiber