2014
Photoelectrochemical oxidation of a turn-on fluorescent probe mediated by a surface MnII catalyst covalently attached to TiO2 nanoparticles
Durrell A, Li G, Koepf M, Young K, Negre C, Allen L, McNamara W, Song H, Batista V, Crabtree R, Brudvig G. Photoelectrochemical oxidation of a turn-on fluorescent probe mediated by a surface MnII catalyst covalently attached to TiO2 nanoparticles. Journal Of Catalysis 2014, 310: 37-44. DOI: 10.1016/j.jcat.2013.07.001.Peer-Reviewed Original ResearchVisible light illuminationTwo-proton oxidationHigh fluorescence quantum yieldFluorescence quantum yieldMultielectron chemistryOrganic linkersSustained photocurrentManganese complexesEffective photoanodeTiO2 electrodeNew photoanodesPhotoelectrochemical oxidationFluorescent behaviorTwo-electronBare TiO2TiO2 nanoparticlesFluorescent probeFluorescent compoundsQuantum yieldNanomolar sensitivityOxidationPhotoanodeExcellent substrateSubstrate oxidationReal-time monitoring
2013
Efficiency of Interfacial Electron Transfer from Zn-Porphyrin Dyes into TiO2 Correlated to the Linker Single Molecule Conductance
Negre C, Milot R, Martini L, Ding W, Crabtree R, Schmuttenmaer C, Batista V. Efficiency of Interfacial Electron Transfer from Zn-Porphyrin Dyes into TiO2 Correlated to the Linker Single Molecule Conductance. The Journal Of Physical Chemistry C 2013, 117: 24462-24470. DOI: 10.1021/jp408738b.Peer-Reviewed Original ResearchDye-sensitized solar cellsSingle-molecule conductanceElectron injection efficiencyZn-porphyrin dyeMolecule conductanceLinker moleculesHigh performance dye-sensitized solar cellsZn-porphyrin complexInterfacial electron transferEfficient electron transportInjection efficiencyMolecular conductanceAdsorbate complexesElectron transferMolecular linkersSame chromophoreTiO2 nanoparticlesSolar cellsDyeModular assemblyMoleculesSpectroscopySemiconductor interfaceLinkerElectron transport
2010
Water -stable, hydroxamate anchors for functionalization of TiO 2 surfaces with ultrafast interfacial electron transfer
McNamara W, Milot R, Song H, Snoeberger R, Batista V, Schmuttenmaer C, Brudvig G, Crabtree R. Water -stable, hydroxamate anchors for functionalization of TiO 2 surfaces with ultrafast interfacial electron transfer. Energy & Environmental Science 2010, 3: 917-923. DOI: 10.1039/c001065k.Peer-Reviewed Original ResearchInterfacial electron transferUltrafast interfacial electron transferTiO2 nanoparticlesSolar energy conversionElectron transferPhotocatalytic cellsNanoparticlesOrganic dyesTiO 2 surfaceMetal oxidesEnergy conversionElectron injectionConduction bandTHz spectroscopyAqueous conditionsTiO2Transition metal complexesNeutral pHFunctionalizationMetal complexesCarboxylate anchorStrong bindingStable moleculesOxideCarboxylic acids
2009
Reversible Visible-Light Photooxidation of an Oxomanganese Water-Oxidation Catalyst Covalently Anchored to TiO2 Nanoparticles
Li G, Sproviero EM, McNamara WR, Snoeberger RC, Crabtree RH, Brudvig GW, Batista VS. Reversible Visible-Light Photooxidation of an Oxomanganese Water-Oxidation Catalyst Covalently Anchored to TiO2 Nanoparticles. The Journal Of Physical Chemistry B 2009, 114: 14214-14222. PMID: 19924873, DOI: 10.1021/jp908925z.Peer-Reviewed Original ResearchPolynuclear transition metal complexesWater oxidation catalystsTransition metal complexesArtificial photosynthetic assembliesVisible-light photoexcitationInterfacial electron transferOxidation chemistryPhotosynthetic assembliesWater oxidationHomogeneous catalystsElectron transferEPR spectroscopyCharge separationManganese compoundsAmide bondCovalent attachmentVisible lightTiO2 nanoparticlesPhotocatalytic devicesNanoparticlesElectron scavengerInexpensive materialsElectron acceptorOxidative conditionsStructural propertiesDeposition of an oxomanganese water oxidation catalyst on TiO 2 nanoparticles : computational modeling, assembly and characterization
Li G, Sproviero E, Snoeberger R, Iguchi N, Blakemore J, Crabtree R, Brudvig G, Batista V. Deposition of an oxomanganese water oxidation catalyst on TiO 2 nanoparticles : computational modeling, assembly and characterization. Energy & Environmental Science 2009, 2: 230-238. DOI: 10.1039/b818708h.Peer-Reviewed Original ResearchWater oxidation catalystsOxidation catalystTiO2 nanoparticlesUV-visible spectroscopyTiO 2 nanoparticlesMixed valence stateAmorphous TiO2 nanoparticlesWater ligandsElectrochemical studiesElectrochemical measurementsEPR spectroscopySurface complexesMimic photosynthesisDirect adsorptionSitu synthesisTiO2 surfaceSuccessful attachmentEPR dataNanoparticlesCatalystSolar cellsSpectroscopyComputational modelingAdsorptionEPR
2008
Acetylacetonate Anchors for Robust Functionalization of TiO2 Nanoparticles with Mn(II)−Terpyridine Complexes
McNamara WR, Snoeberger RC, Li G, Schleicher JM, Cady CW, Poyatos M, Schmuttenmaer CA, Crabtree RH, Brudvig GW, Batista VS. Acetylacetonate Anchors for Robust Functionalization of TiO2 Nanoparticles with Mn(II)−Terpyridine Complexes. Journal Of The American Chemical Society 2008, 130: 14329-14338. PMID: 18831585, DOI: 10.1021/ja805498w.Peer-Reviewed Original ResearchMeSH KeywordsComputer SimulationElectron Spin Resonance SpectroscopyElectronsHydroxybutyratesLightManganeseMembranes, ArtificialModels, ChemicalModels, MolecularMolecular StructureNanoparticlesOrganometallic CompoundsOxidation-ReductionParticle SizePentanonesPhotochemistryPorosityPyridinesSensitivity and SpecificitySpectrophotometry, UltravioletSurface PropertiesTime FactorsTitaniumWaterConceptsInterfacial electron injectionTiO2 nanoparticlesRobust functionalizationTransition metal ionsVisible light sensitizationElectron injectionInterfacial electron transferColloidal thin filmsTerpy complexesPhotocatalytic complexesOxidation chemistryEffective catalystCoupling reactionElectron transferNanoparticlesVariety of scaffoldsComplex of caPhotovoltaic devicesFunctionalizationSubpicosecond time scaleAqueous suspensionOxidative conditionsThin filmsComplexesTransient measurements
2007
Ultrafast Photooxidation of Mn(II)−Terpyridine Complexes Covalently Attached to TiO2 Nanoparticles
Abuabara S, Cady C, Baxter J, Schmuttenmaer C, Crabtree R, Brudvig G, Batista V. Ultrafast Photooxidation of Mn(II)−Terpyridine Complexes Covalently Attached to TiO2 Nanoparticles. The Journal Of Physical Chemistry C 2007, 111: 11982-11990. DOI: 10.1021/jp072380h.Peer-Reviewed Original ResearchInterfacial electron transferTiO2 nanoparticlesColloidal thin filmsVisible light sensitizationElectron transferTime-resolved measurementsSurface modificationNanoparticlesThin filmsTiO2 surfaceAqueous suspensionTransient measurementsEPR signalPhotoexcitationMeasurementsComputational simulationsFilmsFSSpectroscopyComplexesPhotooxidationTransferSurfaceSignals