An enhanced oxygen evolution reaction on 2D CoOOH <i>via</i> strain engineering: an insightful view from spin state transition
Feifei Li, Haoqiang Ai, Dong Liu, Kin Ho Lo, Hui Pan
Abstract
Spin state of Co 3+ ion transfers from low spin (LS: t62ge0g) to high spin (HS: t42ge2g) under strain engineering. HS CoOOH is much active for OER, because of small O 2 release energy (0.03 eV) and effective directly O–O bond coupling (1.21 eV).
Topics & Concepts
Spin statesStrain (injury)Spin (aerodynamics)Oxygen evolutionStrain engineeringOxygenCoupling (piping)State (computer science)Materials scienceIonChemistryChemical physicsCondensed matter physicsPhysicsPhysical chemistryElectrochemistryThermodynamicsPhase transitionElectrodeComputer scienceOrganic chemistryMetallurgyInternal medicineAlgorithmMedicineElectrocatalysts for Energy ConversionElectronic and Structural Properties of OxidesCopper-based nanomaterials and applications