Journal of Inorganic Materials, Volume. 36, Issue 7, 711(2021)

Influence of N/S Co-doping on Electrochemical Property of Brucite Template Carbon Nanotubes

Fangfang LIU1... Xiuyun CHUAN1,*, Yang YANG1, and Aijun LI12 |Show fewer author(s)
Author Affiliations
  • 11. The Key Laboratory of Orogenic Belts and Crustal Evolution (MOE), School of Earth and Space Sciences, Peking University, Beijing 100871, China
  • 22. Golden Feature Science and Technology Ltd, Beijing 100095, China
  • show less

    N/S doped carbon nanotubes were prepared with natural mineral fibrous brucite as template, sucrose as carbon source, and thiourea as nitrogen and sulfur source. Experimental results indicate that the doped carbon nanotubes inherit the one-dimensional columnar structure of the fibrous brucite template. In addition, it presents a hollow tubular structure, which increases the specific surface area and pore volume of the template carbon. In 6 mol·L-1 KOH electrolyte, the electrochemical performance significantly improves after doping. CNT-N/S presents a high specific capacity of 172.0 F·g-1 at current density of 1 A·g-1, higher than those of CNT (62.2 F·g-1) and CNT-N (97.0 F·g-1). The capacitance of the N/S doped carbon nanotubes remains 89% after 1000 charge-discharge cycles. Furthermore, the assembled symmetrical supercapacitor also shows good capacitance performance.

    Tools

    Get Citation

    Copy Citation Text

    Fangfang LIU, Xiuyun CHUAN, Yang YANG, Aijun LI. Influence of N/S Co-doping on Electrochemical Property of Brucite Template Carbon Nanotubes[J]. Journal of Inorganic Materials, 2021, 36(7): 711

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: RESEARCH ARTICLE

    Received: Jan. 15, 2020

    Accepted: --

    Published Online: Nov. 25, 2021

    The Author Email: CHUAN Xiuyun (xychuan@pku.edu.cn)

    DOI:10.15541/jim20200033

    Topics