Tuning the Fe–N<sub>4</sub> sites by introducing Bi–O bonds in a Fe–N–C system for promoting the oxygen reduction reaction
Huihui Jin, Jiawei Zhu, Ruohan Yu, Wenqiang Li, Pengxia Ji, Lvhan Liang, Bingshuai Liu, Chenxi Hu, Daping He, Shichun Mu
Abstract
The Bi–O bonding near the Fe–N site regulates and endows the Fe electronic structure with a lower band gap, which promotes the oxygen reduction activity of the Fe–N site, and provides a new direction for the optimization of metal–N–C catalysts.
Topics & Concepts
Oxygen reduction reactionOxygenCatalysisMaterials scienceReduction (mathematics)MetalBand gapElectronic structureOxygen reductionCrystallographyChemistryPhysical chemistryComputational chemistryOptoelectronicsMetallurgyGeometryElectrochemistryMathematicsElectrodeBiochemistryOrganic chemistryElectrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceSemiconductor materials and devices