2017
Photodriven Oxidation of Surface-Bound Iridium-Based Molecular Water-Oxidation Catalysts on Perylene-3,4-dicarboximide-Sensitized TiO2 Electrodes Protected by an Al2O3 Layer
Kamire R, Materna K, Hoffeditz W, Phelan B, Thomsen J, Farha O, Hupp J, Brudvig G, Wasielewski M. Photodriven Oxidation of Surface-Bound Iridium-Based Molecular Water-Oxidation Catalysts on Perylene-3,4-dicarboximide-Sensitized TiO2 Electrodes Protected by an Al2O3 Layer. The Journal Of Physical Chemistry C 2017, 121: 3752-3764. DOI: 10.1021/acs.jpcc.6b11672.Peer-Reviewed Original ResearchMolecular water oxidation catalystsDye-sensitized photoelectrochemical cellsWater oxidation catalystsCharge transfer dynamicsSolar fuel productionCharge recombinationAtomic layer depositionHigher photocurrentTransfer dynamicsDye-sensitized TiO2 photoanodesFemtosecond transient absorption spectroscopyCharge transfer rateTransient absorption spectroscopyALD layersFuel productionDicarboximide chromophorePhotodriven oxidationMononuclear catalystsDinuclear catalystsCatalyst oxidationDye moleculesInitial charge injectionMolecular structurePhotoelectrochemical experimentsAbsorption spectroscopy
2015
Interfacial electron transfer in photoanodes based on phosphorus( v ) porphyrin sensitizers co-deposited on SnO 2 with the Ir(III)Cp* water oxidation precatalyst
Poddutoori P, Thomsen J, Milot R, Sheehan S, Negre C, Garapati V, Schmuttenmaer C, Batista V, Brudvig G, van der Est A. Interfacial electron transfer in photoanodes based on phosphorus( v ) porphyrin sensitizers co-deposited on SnO 2 with the Ir(III)Cp* water oxidation precatalyst. Journal Of Materials Chemistry A 2015, 3: 3868-3879. DOI: 10.1039/c4ta07018f.Peer-Reviewed Original ResearchInterfacial electron transferElectron paramagnetic resonanceQuantum dynamics simulationsElectron transferPhotoanode componentCatalytic water oxidationEfficient interfacial electron transferDynamics simulationsMetal oxide surfacesSolar cellsTime-resolved terahertz spectroscopy measurementsSteady-state fluorescenceTypes of porphyrinsTerahertz spectroscopy measurementsOxidation precatalystWater oxidationAxial coordinationChloride ligandsPorphyrin sensitizersOxidation stateCharge recombinationParamagnetic resonanceSnO 2Phosphorus porphyrinsSpectroscopy measurements
2008
Redox Reactions of the Non-Heme Iron of Photosystem II: An EPR Spectroscopic Study
McEvoy J, Brudvig G. Redox Reactions of the Non-Heme Iron of Photosystem II: An EPR Spectroscopic Study. 2008, 141-144. DOI: 10.1007/978-1-4020-6709-9_32.Peer-Reviewed Original ResearchSecondary electron donorNon-heme ironElectron donorRedox activityElectron transfer reactionsEPR spectroscopic studiesProton transfer reactionsProton transfer pathwayPhotosystem IIRedox chemistryRedox reactionsEPR spectroscopySpectroscopic studiesCharge recombinationEPR quantitationQB sitePotassium ferricyanideReactionFe3Fe2IronLow temperatureAcceptor sitesDonor yieldChemistry