Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (04): 792-798.doi: 10.3866/PKU.WHXB201302221

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Catalytic Performance of Heat-Treated Fe-Melamine/C and Fe-g-C3N4/C Electrocatalysts for Oxygen Reduction Reaction

LI Shang, WANG Jia-Tang, CHEN Rui-Xin, ZHAO Wei, QIAN Liu, PAN Mu   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
  • Received:2012-10-15 Revised:2013-02-15 Published:2013-03-25
  • Supported by:

    The project was supported by the Natural Science Foundation of Hubei Province, China (2012FFB05106) and Major State Basic Research Development Program of China (973) (2012CB215504).

Abstract:

Melamine and its polymer (g-C3N4) were used as ligands to prepare Fe-N/C electrocatalysts for the oxygen reduction reaction (ORR) by an impregnation method. The composition, morphology and electrocatalytic activity of the catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and electrochemical measurements. The Fe-N/C catalyst using g-C3N4 as a complex ligand showed higher activity in the ORR than that with melamine. The formation of quaternary N active sites on the surface of the catalyst during heat treatment helps to improve their performance in the ORR.

Key words: Melamine, Non-noble metal electrocatalyst, Oxygen reduction reaction, Graphitic N, Proton exchange membrane fuel cell

MSC2000: 

  • O643