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

作者：Liang, Qunying; Su, Hong; Yan, Jing; Leung, Chunkit; Cao, Shuiliang; Yuan, Dingsheng^*

来源：Chinese Journal of Catalysis, 2014, 35(7): 1078-1083.

DOI：10.1016/S1872-2067(14)60044-9

• N-doped mesoporous carbon
• chitosan
• electrocatalyst
• oxygen reduction reaction
• supercapacitor

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.

• 出版日期2014-7
• 单位暨南大学