Small size Mo2C nanocrystal coupled with reduced graphene oxide enhance the electrochemical activity of palladium nanoparticles towards methanol oxidation reaction

摘要: A small-sized Mo2C nanoparticle on reduced graphene oxide (RGO) nanosheet hybrid (Mo2C–RGO) was applied as a co-catalyst to Pd nanoparticles form highly dispersed heterogeneous catalyst (Pd/Mo2C–RGO). Compared Pd/C, Pd/Mo2C–RGO exhibits significantly enhanced MOR activity; the mass activity of is 1502 mA mgPd−1, about 2.5 times that Pd/C (599 mgPd−1), and specific (jk) 1.59 cm−2 at −0.2 V (vs. Hg/HgO), which twice (0.78 cm−2). In addition, resistance poisonous CO-like intermediates durability are also remarkably improved.