Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (7): 1078-1083.DOI: 10.1016/S1872-2067(14)60044-9

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N-doped mesoporous carbon as a bifunctional material for oxygen reduction reaction and supercapacitors

Qunying Lianga, Hong Sub, Jing Yana, Chunkit Leunga, Shuiliang Caoc, Dingsheng Yuana   

  1. a. Department of Chemistry, Jinan University, Guangzhou 510632, Guangdong, China;
    b. Institute of Hydrobiology, Jinan University, Guangzhou 510460, Guangdong, China;
    c. Center of Analysis and Testing, Jinan University, Guangzhou 510632, Guangdong, China
  • Received:2013-12-30 Revised:2014-01-22 Online:2014-06-28 Published:2014-06-28
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21031001, 21376105), the 44th Scientific Research Foundation for the Returned Overseas Chinese Scholars, and the Undergraduate Innovation Program of Guangdong, China (10559120720).

Abstract:

A N-doped mesoporous carbon (NMC-1) has been synthesized at relatively low temperature using chitosan as a nitrogen and carbon source, tetraethoxysilane as a soft template, and nickel nitrate as a catalyst. NMC-1 has a porous structure and heteroatoms such as N and O atoms, indicating that NMC-1 can contribute to electrocatalysis, electric double-layer capacitance, and pseudocapacitance. Hence, NMC-1 was used as a bifunctional material which shows effective activity as an electrocatalyst for oxygen reduction reaction in alkaline solution, and a high specific capacitance as an ultracapacitor (252 F/g at 0.2 A/g). The results demonstrate that the presented NMC-1 has potential applications as a renewable and environmentally friendly material in fuel cells and supercapacitors.

Key words: N-doped mesoporous, carbon chitosan, electrocatalyst, oxygen reduction reaction, supercapacitor