SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 40 ›› Issue (12): 304-314.DOI: 10.1016/j.cjche.2020.11.042

• Materials and Product Engineering • 上一篇    下一篇

Three-dimensional oxygen-doped porous graphene: Sodium chloride-template preparation, structural characterization and supercapacitor performances

Zesheng Li1, Bolin Li1, Lijun Du1, Weiliang Wang1, Xichun Liao1, Huiqing Yu1, Changlin Yu1, Hongqiang Wang2, Qingyu Li2   

  1. 1. College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China;
    2. Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi Normal University, Guilin 541004, China
  • 收稿日期:2020-06-27 修回日期:2020-10-03 出版日期:2021-12-28 发布日期:2022-01-14
  • 通讯作者: Zesheng Li,E-mail:lzs212@163.com;Qingyu Li,E-mail:liqingyu62@126.com
  • 基金资助:
    This research was supported by National Natural Science Foundation of China (22078071, 51762006 and 51864007), Natural Science Foundation of Guangdong Province (2020A1515010344), Science and Technology Innovation Project of Guangdong Province College Students (733316), Guangxi Key Research and Development Program of Science and Technology (GUIKE AB17195065 and AB17129011), and Guangxi Technology Base and Talent Subject (GUIKE AD18126001 and GUIKE AD17195084), Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) and the program for Innovative Research Team of Guangdong University of Petrochemical Technology.

Three-dimensional oxygen-doped porous graphene: Sodium chloride-template preparation, structural characterization and supercapacitor performances

Zesheng Li1, Bolin Li1, Lijun Du1, Weiliang Wang1, Xichun Liao1, Huiqing Yu1, Changlin Yu1, Hongqiang Wang2, Qingyu Li2   

  1. 1. College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China;
    2. Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi Normal University, Guilin 541004, China
  • Received:2020-06-27 Revised:2020-10-03 Online:2021-12-28 Published:2022-01-14
  • Contact: Zesheng Li,E-mail:lzs212@163.com;Qingyu Li,E-mail:liqingyu62@126.com
  • Supported by:
    This research was supported by National Natural Science Foundation of China (22078071, 51762006 and 51864007), Natural Science Foundation of Guangdong Province (2020A1515010344), Science and Technology Innovation Project of Guangdong Province College Students (733316), Guangxi Key Research and Development Program of Science and Technology (GUIKE AB17195065 and AB17129011), and Guangxi Technology Base and Talent Subject (GUIKE AD18126001 and GUIKE AD17195084), Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) and the program for Innovative Research Team of Guangdong University of Petrochemical Technology.

摘要: Supercapacitor is a new type of energy storage device, which has the advantages of high-power property and long cycle life. In this study, three-dimensional graphene (3D-GN) with oxygen doping and porous structure was prepared from graphene oxide (GO) by an inexpensive sodium chloride (NaCl) template, as a promising electrode material for the supercapacitor. The structure, morphology, specific surface area, pore size, of the sample were characterized by XRD, SEM, TEM and BET techniques. The electrochemical performances of the sample were tested by CV and CDC techniques. The 3D-GE product is a three-dimensional nano material with hierarchical porous structures, its specific surface area is much larger than that of routine stacked graphene (GN), and it contains a large number of mesoporous and macropores, a small amount of micropores. The capacitance characteristics of the 3D-GN electrode material are excellent, showing high specific capacitance (173.5 F·g-1 at 1 A·g-1), good rate performance (109.2 F·g-1 at 8 A·g-1) and long cycle life (88% capacitance retention after 10,000 cycles at 8 A·g-1)

关键词: 3-D porous graphene, Template preparation, Sodium chloride, Supercapacitor

Abstract: Supercapacitor is a new type of energy storage device, which has the advantages of high-power property and long cycle life. In this study, three-dimensional graphene (3D-GN) with oxygen doping and porous structure was prepared from graphene oxide (GO) by an inexpensive sodium chloride (NaCl) template, as a promising electrode material for the supercapacitor. The structure, morphology, specific surface area, pore size, of the sample were characterized by XRD, SEM, TEM and BET techniques. The electrochemical performances of the sample were tested by CV and CDC techniques. The 3D-GE product is a three-dimensional nano material with hierarchical porous structures, its specific surface area is much larger than that of routine stacked graphene (GN), and it contains a large number of mesoporous and macropores, a small amount of micropores. The capacitance characteristics of the 3D-GN electrode material are excellent, showing high specific capacitance (173.5 F·g-1 at 1 A·g-1), good rate performance (109.2 F·g-1 at 8 A·g-1) and long cycle life (88% capacitance retention after 10,000 cycles at 8 A·g-1)

Key words: 3-D porous graphene, Template preparation, Sodium chloride, Supercapacitor