Dual-Core Fe Catalyst Brings Major Enhancements in ORR Kinetics

The sluggish kinetics and side reactions of the oxygen reduction reaction have impeded deployment of proton-exchange-membrane fuel cells. A recent article (Xie et al.) introduces an efficient nonprecious metal catalyst (Fe2N6) that enhances the kinetics of 4-electron O2 reduction by more than seven times compared with that of the well-documented single-site FeN4 catalysts. The sluggish kinetics and side reactions of the oxygen reduction reaction have impeded deployment of proton-exchange-membrane fuel cells. A recent article (Xie et al.) introduces an efficient nonprecious metal catalyst (Fe2N6) that enhances the kinetics of 4-electron O2 reduction by more than seven times compared with that of the well-documented single-site FeN4 catalysts.