NH <sub>3</sub> -induced activation of hydrophilic Fe–N–C nanocages for enhanced oxygen reduction reaction
Bin Wu, Haibing Meng, Dulce M. Morales, Bo Liu, Deniz Wong, Christian Schulz, Giacomo Zuliani, Maddalena Zoli, Omeshwari Yadorao Bisen, S.J. Hall, Annika Bande, Zhenbo Wang, Marcel Risch, Tristan Petit
Abstract
A scalable process for the synthesis Fe–N–C catalysts for the ORR is introduced. After annealing in ammonia, the Fe–N–C catalysts exhibit an onset potential of 0.97 V and a potential of 0.89 V vs. RHE at a current density of −1 mA cm −2 in 0.1 M KOH.
Topics & Concepts
NanocagesCatalysisOxygen reduction reactionChemistryOxygenReduction (mathematics)Combinatorial chemistryOrganic chemistryPhysical chemistryElectrochemistryMathematicsGeometryElectrodeElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsSemiconductor materials and devices