Single-step pyrolytic preparation of Mo2C/graphitic carbon nanocomposite as catalyst carrier for the direct liquid-feed fuel cells

Abstract

The work presented a practical and low-cost strategy for the preparation of Mo₂C/graphitic carbon nanocomposite (Mo₂C/GC). This synthesis has been conducted by a single-step heat treatment of resin–MoO₄²⁻–[Fe(CN)₆]⁴⁻ precursor in N₂ atmosphere. The final material consists of well-dispersed Mo₂C nanoparticles (typically 10–15 nm) on graphitic carbon. The formation process of Mo₂C/GC has been investigated. The resultant material exhibits good supporting effect on Pt and Pd catalysts toward electro-oxidation of methanol, ethanol and formyl acid. This method is very simple and enables a systematic design of new, predictable catalysts.