Hollow carbon nanoreactors integrating NiFe-LDH nanodots with adjacent La single atoms for efficient oxygen electrocatalytic reactions
Leilei Yin, Yuyan Liu, Shuai Zhang, Yongkang Huang, Qiang Wang, Jincheng Liu, Chao Gu, Yaping Du
Abstract
. Impressively, a cathode catalyst combining NiFe-LDH@La SNHPC with Pt/C can be stabilized in rechargeable zinc-air batteries (ZABs) for more than 350 h. Theoretical calculations indicated that the introduction of La SAs modified the electronic structures of the NiFe-LDH nanodots, activated lattice oxygen activity, optimized the adsorption strength of the intermediates, and reduced rate-determining step energy barriers in OER. This study provides guidance for the preparation and design of sub-microreactors and information on the strong electron interaction effects induced by rare earth species.
Topics & Concepts
NanoreactorNanodotOxygen evolutionMaterials scienceCarbon fibersOxygenNanotechnologyOxygen reduction reactionChemical engineeringChemistryNanoparticleElectrodePhysical chemistryElectrochemistryOrganic chemistryComposite numberComposite materialEngineeringElectrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceFuel Cells and Related Materials