Haitao Huang, Ying Chang, Jingchun Jia, Meilin Jia, Zhenhai Wen

International Journal of Hydrogen Energy Volume 45, Issue 53, 2020, Pages 28764-28773

Transition metal carbide catalysts are the alternative products of traditional noble metal Pt/C in oxygen reduction reaction (ORR). Oleic acid-coated iron oxide nanoparticles (F₃O₄@OA) was prepared by pyrolysis, assembled with reduced graphene oxide (rGO), and carbonized at 800 ℃ to obtain N doped iron carbide nanoparticles supported rGO (N-Fe₃C/rGO). The particle size of nanocrystals increases significantly with the graphene loading risen can be seen in the transmission electron microscope (TEM) image which roughly distributed around 40 nm. The linear scanning voltammetry (LSV) curve shows the material has an ORR performance equivalent to Pt/C in alkaline media.