Well Dispersed ZIF Derived Co,N Co doped Carbon Nanoframes through Mesoporous Silica Protected Calcination as Efficient Oxygen Reduction Electrocatalysts.
A well dispersed Co,N co doped carbon nanoframework (Co,N CNF) with hierarchically porous structure is successfully synthesized from zeolitic imidazolate framework (ZIF) precursors via a mesoporous silica protected calcination strategy. By preventing the irreversible fusion and aggregation during the high temperature pyrolysis step with this protection strategy, the Co,N CNF exhibits comparable oxygen reduction reaction (ORR) catalytic activity to that of commercial Pt catalysts with the same loading.
Advanced materials