A nitrogen-doped mesoporous carbon containing an embedded network of carbon nanotubes as a highly efficient catalyst for the oxygen reduction reaction.

摘要: A nitrogen-doped mesoporous carbon containing a network of nanotubes (CNTs) was produced for use as catalyst the oxygen reduction reaction (ORR). SiO2 nanoparticles were decorated with clusters Fe atoms to act seeds CNT growth, after which material impregnated aniline. After polymerization aniline, pyrolysed and removed by acid treatment. The resulting carbon-based hybrid also contained some from growth doped N Fe-N species active catalytic sites enables efficient electron transport in material. Mesopores left removal template provide short pathways easy access ions. As result, showed not only excellent ORR activity, 59 mV more positive onset potential 30 half-wave than Pt/C catalyst, but much longer durability stronger tolerance methanol crossover catalyst.