2024
Photochemical Oxidation of Substrate Water Analogs and Halides by Photosystem II
Shin J, Kanyo J, Debus R, Brudvig G. Photochemical Oxidation of Substrate Water Analogs and Halides by Photosystem II. Advanced Energy Materials 2024, 14 DOI: 10.1002/aenm.202401292.Peer-Reviewed Original ResearchWater oxidation catalysisRedox-active cofactorsOxidation catalysisWater oxidationSubstrate photooxidationProtein-pigment complexesRedox chemistryPhotochemical reductionSubstrate waterNative PSIISmall moleculesO 2 evolutionHalidesO-2ChloridePhotooxidationPhotochemical oxidationPSII complexesBound chlorideKinetic profilesPhotosystem IISubstratePutative water channelsCatalystCatalysisOptical Pump THz Probe Spectroscopy on Metal-Organic Frameworks
Ostresh S, Nyakuchena J, Streater D, Wang D, Cody C, Hooper R, Zhang X, Reinhart B, Ma Q, He P, Brudvig G, Huang J, Neu J. Optical Pump THz Probe Spectroscopy on Metal-Organic Frameworks. 2024, fw4i.3. DOI: 10.1364/cleo_fs.2024.fw4i.3.Peer-Reviewed Original ResearchMetal-organic frameworksOptical pump-THz probePorous crystalline metal-organic frameworksCrystalline metal-organic frameworksCatalytic activity measurementsElectro-optical applicationsMetal centerProbe spectroscopyOptical pump-THz probe spectroscopyUltrafast photoconductivityPhotoconductivityTHz-probe spectroscopyPhotophysicsCatalysisChemical compositionTHz probeSpectroscopyMaterialsMetalChemical
2023
Electrocatalytic, Homogeneous Ammonia Oxidation in Water to Nitrate and Nitrite with a Copper Complex
Liu H, Lant H, Troiano J, Hu G, Mercado B, Crabtree R, Brudvig G. Electrocatalytic, Homogeneous Ammonia Oxidation in Water to Nitrate and Nitrite with a Copper Complex. ECS Meeting Abstracts 2023, MA2023-01: 2691-2691. DOI: 10.1149/ma2023-01552691mtgabs.Peer-Reviewed Original ResearchWater oxidationAmmonia oxidationO bond formationInitial mechanistic studiesMolecular catalystsCopper complexesMetal electrocatalystsFaradaic efficiencyAqueous mediaBond formationHigh selectivityOxidation processN2 productTitle reactionOxidationMechanistic studiesCatalysisComplexesRoom temperatureFriendly productionWaterElectrocatalystsElectrocatalyticNitrateCatalystAtomically dispersed Ir catalysts exhibit support-dependent water oxidation kinetics during photocatalysis
Zhang H, Liu T, Dulock N, Williams B, Wang Y, Chen B, Wikar H, Wang D, Brudvig G, Wang D, Waegele M. Atomically dispersed Ir catalysts exhibit support-dependent water oxidation kinetics during photocatalysis. Chemical Science 2023, 14: 6601-6607. PMID: 37350819, PMCID: PMC10283500, DOI: 10.1039/d3sc00603d.Peer-Reviewed Original ResearchWater oxidation activityIndium tin oxideActive siteOxidation activityHeterogeneous water oxidation catalysisHigh water oxidation activityWater oxidation catalysisWater oxidation kineticsOxidation catalysisWater oxidationIr catalystHeterogeneous catalystsDistinct active sitesLight sensitizerPrototypical reactionReaction mechanismDifferent supportsElectron scavengerCatalystTin oxideOxidation kineticsHigh temperatureLow temperatureStudied rangeCatalysisOptical Pump THz Probe Spectroscopy on Metal-Organic Frameworks
Ostresh S, Nyakuchena J, Streater D, Cody C, Hooper R, Zhang X, Reinhart B, Brudvig G, Huang J, Neu J. Optical Pump THz Probe Spectroscopy on Metal-Organic Frameworks. 2023, 00: 1-1. DOI: 10.1109/irmmw-thz57677.2023.10299057.Peer-Reviewed Original Research
2019
N,N,O Pincer Ligand with a Deprotonatable Site That Promotes Redox‐Leveling, High Mn Oxidation States, and a Mn2O2 Dimer Competent for Catalytic Oxygen Evolution
Lant H, Michaelos T, Sharninghausen L, Mercado B, Crabtree R, Brudvig G. N,N,O Pincer Ligand with a Deprotonatable Site That Promotes Redox‐Leveling, High Mn Oxidation States, and a Mn2O2 Dimer Competent for Catalytic Oxygen Evolution. European Journal Of Inorganic Chemistry 2019, 2019: 2115-2123. DOI: 10.1002/ejic.201801343.Peer-Reviewed Original ResearchAlkoxide moietyOxidation stateOxygen evolutionHigher Mn oxidation statesCatalytic oxygen evolutionO-pincer ligandMn oxidation statePincer ligandRedox levelingElectrochemical dataLow overpotentialProtonation stateProton lossEPR experimentsMn IIIO intermediateRelated seriesMn–VMn IIMoietyLigandsOverpotentialDicationCatalystCatalysis
2017
Antimony Complexes for Electrocatalysis: Activity of a Main‐Group Element in Proton Reduction
Jiang J, Materna K, Hedström S, Yang K, Crabtree R, Batista V, Brudvig G. Antimony Complexes for Electrocatalysis: Activity of a Main‐Group Element in Proton Reduction. Angewandte Chemie 2017, 129: 9239-9243. DOI: 10.1002/ange.201704700.Peer-Reviewed Original ResearchMain group catalysisRedox-active ligandsMain group complexesQuantum chemistry calculationsMain group elementsViable electrocatalystsPorphyrin ligandChemistry calculationsHydroxy ligandsElectrocatalysis applicationsProton reductionCatalytic propertiesAntimony complexesRedox activityAxial ligandsCatalytic cycleSb centerLigandsCatalysisComplexesElectrocatalysisElectrocatalystsPorphyrinsReactionAcid
2016
Heterogenized Iridium Water-Oxidation Catalyst from a Silatrane Precursor
Materna K, Rudshteyn B, Brennan B, Kane M, Bloomfield A, Huang D, Shopov D, Batista V, Crabtree R, Brudvig G. Heterogenized Iridium Water-Oxidation Catalyst from a Silatrane Precursor. ACS Catalysis 2016, 6: 5371-5377. DOI: 10.1021/acscatal.6b01101.Peer-Reviewed Original ResearchIridium Water Oxidation CatalystsMetal oxide semiconductor surfacesWater oxidation catalystsExperimental IR spectraOxide semiconductor surfaceWater oxidationHeterogenized catalystTurnover frequencyIR spectraSilatrane precursorCovalent attachmentFunctional groupsTurnover numberM KNO3CatalystSemiconductor surfacesPrecatalystOverpotentialCatalysisComputational modelingOxidationPrecursorsKNO3SpectraSurface