Tuning ceria catalysts in aqueous media at the nanoscale: how do surface charge and surface defects determine peroxidase- and haloperoxidase-like reactivity
Eva Pütz, Glen J. Smales, Olga Jegel, Franziska Emmerling, Wolfgang Tremel
Abstract
Surface area (S BET ) and Ce 3+ /Ce 4+ ratio of mesoporous CeO 2− x nanoparticles are increased with synthesis time while and the ζ-potential decreases. This allows their selective use for haloperoxidase- and peroxidase-catalysis.
Topics & Concepts
Surface chargeCatalysisMesoporous materialChemical engineeringAqueous solutionNanoparticleInorganic chemistryAdsorptionSpecific surface areaMaterials scienceX-ray photoelectron spectroscopySurface modificationSubstrate (aquarium)ChemistryNanotechnologyOrganic chemistryPhysical chemistryEngineeringOceanographyGeologyAdvanced Nanomaterials in CatalysisNanocluster Synthesis and ApplicationsNanoparticles: synthesis and applications