Oxygen vacancy and valence engineering in CeO<sub>2</sub> through distinct sized ion doping and their impact on oxygen reduction reaction catalysis
Debarati Das, Jyoti Prakash, U. K. Goutam, Subhakankha Manna, Santosh K. Gupta, K. Sudarshan
Abstract
Trivlent dopants with larger ionic radii and weaker-vacancy dopant association result in higher oxygen vacancy and Ce 3+ fraction in CeO 2 and facilitate ORR catalysis.
Topics & Concepts
Valence (chemistry)OxygenOxygen reduction reactionCatalysisIonDopingVacancy defectMaterials scienceOxygen reductionInorganic chemistryChemistryPhysical chemistryCrystallographyOptoelectronicsOrganic chemistryElectrochemistryElectrodeCatalytic Processes in Materials ScienceElectrocatalysts for Energy ConversionSemiconductor materials and devices