Preparation and performance of iron-based biomass carbon catalysts co-doped with nitrogen and phosphorus for oxygen reduction reactions
Iron-based biomass carbon(N,P-FeBMC)catalysts co-doped with nitrogen and phosphorus were prepared through the hy-drothermal treatment followed by co-pyrolysis with bagasse as the carbon source,phytic acid as the activator and phosphorus source,and melamine as the nitrogen source.The prepared catalysts were characterized with XRD,Raman,SEM,BET and XPS,and their elec-trocatalytic performance was also tested.The results show that bagasse carbon can be made in the form of microspheres through introdu-cing phytic acid for hydrothermal treatment.After co-pyrolysis with melamine,the material further possesses rich microporous and me-soporous structure,having a specific surface area of 911 m2/g.With the successful co-doping of nitrogen and phosphorus into the crys-tal lattice of carbon,the catalyst generates a lot of active sites.The half-wave potential of N,P-FeBMC catalyst is 0.913 V,which is a-bout 18 mV higher than that of commercial Pt/C.In addition,the catalyst also shows good durability and methanol resistance,indicating that bagasse as a biomass is a potential material for preparing high-performance carbons.
Biomassbagassecarbon microspheresphosphorus and nitrogen co-dopingoxygen reduction catalyst
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维普
