2023
Active Sites of Cobalt Phthalocyanine in Electrocatalytic CO2 Reduction to Methanol
Rooney C, Lyons M, Wu Y, Hu G, Wang M, Choi C, Gao Y, Chang C, Brudvig G, Feng Z, Wang H. Active Sites of Cobalt Phthalocyanine in Electrocatalytic CO2 Reduction to Methanol. Angewandte Chemie International Edition 2023, 63: e202310623. PMID: 37820079, DOI: 10.1002/anie.202310623.Peer-Reviewed Original ResearchActive siteCobalt phthalocyanineSitu X-ray absorption spectroscopyX-ray absorption spectroscopy characterizationX-ray absorption spectroscopyElectrocatalytic CO2 reductionStructure-reactivity correlationsAbsorption spectroscopy characterizationElectrocatalytic measurementsMetal coordinationElectrocatalytic performanceCoordination environmentMolecular dispersionRelated porphyrinsCNT surfaceElectron transferAbsorption spectroscopyConductive carbonElectronic interactionsKey intermediateCO2 reductionPc macrocycleReaction mechanismSpectroscopy characterizationMethanol pathwayActive Sites of Cobalt Phthalocyanine in Electrocatalytic CO2 Reduction to Methanol
Rooney C, Lyons M, Wu Y, Hu G, Wang M, Choi C, Gao Y, Chang C, Brudvig G, Feng Z, Wang H. Active Sites of Cobalt Phthalocyanine in Electrocatalytic CO2 Reduction to Methanol. Angewandte Chemie 2023, 136 DOI: 10.1002/ange.202310623.Peer-Reviewed Original ResearchCO 2 reductionActive siteCobalt phthalocyanineSitu X-ray absorption spectroscopyX-ray absorption spectroscopy characterizationX-ray absorption spectroscopyElectrocatalytic CO2 reductionStructure-reactivity correlationsAbsorption spectroscopy characterizationCO 2 electroreductionCO 2Electrocatalytic measurementsCoordination environmentElectrocatalytic performanceMolecular dispersionRelated porphyrinsCNT surfaceElectron transferAbsorption spectroscopyConductive carbonElectronic interactionsKey intermediateCO2 reductionPc macrocycleReaction mechanismDominant Role of Hole Transport Pathway in Achieving Record High Photoconductivity in Two‐Dimensional Metal–Organic Frameworks
Wang D, Ostresh S, Streater D, He P, Nyakuchena J, Ma Q, Zhang X, Neu J, Brudvig G, Huang J. Dominant Role of Hole Transport Pathway in Achieving Record High Photoconductivity in Two‐Dimensional Metal–Organic Frameworks. Angewandte Chemie 2023, 135 DOI: 10.1002/ange.202309505.Peer-Reviewed Original ResearchTransient absorption spectroscopyX-ray transient absorption spectroscopyPhotoelectric devicesAbsorption spectroscopyOptical transient absorption spectroscopyTime-resolved terahertz spectroscopyHigh photoconductivityHole transport mechanismTwo-dimensional metalsElectron dynamicsDensity functional theory calculationsTerahertz spectroscopyElectronic statesFunctional theory calculationsMetal-organic frameworksPhotoconductivityTheory calculationsCharge transportMobile chargesSpectroscopyHole transport pathwaysCharge transport pathwaysDominant Role of Hole Transport Pathway in Achieving Record High Photoconductivity in Two‐Dimensional Metal–Organic Frameworks
Wang D, Ostresh S, Streater D, He P, Nyakuchena J, Ma Q, Zhang X, Neu J, Brudvig G, Huang J. Dominant Role of Hole Transport Pathway in Achieving Record High Photoconductivity in Two‐Dimensional Metal–Organic Frameworks. Angewandte Chemie International Edition 2023, 62: e202309505. PMID: 37872121, DOI: 10.1002/anie.202309505.Peer-Reviewed Original ResearchTransient absorption spectroscopyX-ray transient absorption spectroscopyPhotoelectric devicesAbsorption spectroscopyOptical transient absorption spectroscopyTime-resolved terahertz spectroscopyHigh photoconductivityHole transport mechanismTwo-dimensional metalsElectron dynamicsDensity functional theory calculationsTerahertz spectroscopyElectronic statesFunctional theory calculationsMetal-organic frameworksPhotoconductivityTheory calculationsCharge transportMobile chargesSpectroscopyHole transport pathwaysCharge transport pathways
2022
Revealing the Structure of Single Cobalt Sites in Carbon Nitride for Photocatalytic CO2 Reduction
Huang P, Huang J, Li J, Pham T, Zhang L, He J, Brudvig G, Deskins N, Frenkel A, Li G. Revealing the Structure of Single Cobalt Sites in Carbon Nitride for Photocatalytic CO2 Reduction. The Journal Of Physical Chemistry C 2022, 126: 8596-8604. DOI: 10.1021/acs.jpcc.2c01216.Peer-Reviewed Original ResearchPhotocatalytic CO2 reductionSingle CO2CO2 reductionCarbon nitrideX-ray absorption spectroscopyCo-N bond lengthsImproved catalytic propertiesSingle Cobalt SitesMode of coordinationMore edge sitesGraphitic carbon nitrideObserved enhancement effectMetal centerCatalytic propertiesC3N4 materialsAbsorption spectroscopyBond lengthsSpectroscopic toolsPhotocatalytic propertiesExcellent activityCobalt sitesEdge sitesC3N4 flakesBinding energiesLight absorption
2021
Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting
Spies J, Swierk J, Kelly H, Capobianco M, Regan K, Batista V, Brudvig G, Schmuttenmaer C. Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting. ACS Applied Energy Materials 2021, 4: 4695-4703. DOI: 10.1021/acsaem.1c00305.Peer-Reviewed Original ResearchDFT calculationsAbsorption spectroscopyInterfacial electron transfer dynamicsUltrafast transient absorption spectroscopyInterfacial electron transferElectron transfer dynamicsUltrafast electron injectionConduction bandPeriodic DFT calculationsTransient absorption spectroscopyLinear absorption spectroscopyDye sensitizersWater splittingElectron transferTransfer dynamicsComposition of SnElectron acceptorAbsorption spectraElectron injectionD characterElectronic statesSpectroscopyPhotoanodeSnDyePhotoinduced Charge Transport in Conductive Metal Organic Frameworks
Ostresh S, Nyakuchena J, Pattenale B, Neu J, Streater D, Fiankor C, Hu W, Kinigstein E, Zhang J, Zhang X, Schmuttenmaer C, Huang J, Brudvig G. Photoinduced Charge Transport in Conductive Metal Organic Frameworks. 2021, 00: 1-2. DOI: 10.1109/irmmw-thz50926.2021.9567551.Peer-Reviewed Original ResearchConductive metal-organic frameworksMetal-organic frameworksPhotocatalytic applicationsCharge transport mechanismOrganic frameworksPorous crystalline materialsCharge transportTerahertzCrystalline materialsTransport mechanismRational designPromising classConductivityApplicationsAbsorption spectroscopyTransient absorption spectroscopyMaterials
2018
Direct Interfacial Electron Transfer from High-Potential Porphyrins into Semiconductor Surfaces: A Comparison of Linkers and Anchoring Groups
Jiang J, Spies J, Swierk J, Matula A, Regan K, Romano N, Brennan B, Crabtree R, Batista V, Schmuttenmaer C, Brudvig G. Direct Interfacial Electron Transfer from High-Potential Porphyrins into Semiconductor Surfaces: A Comparison of Linkers and Anchoring Groups. The Journal Of Physical Chemistry C 2018, 122: 13529-13539. DOI: 10.1021/acs.jpcc.7b12405.Peer-Reviewed Original ResearchMetal oxide surfacesDirect interfacial electron transferTime-resolved terahertzInterfacial electron transferOxide surfaceSemiconductor surfacesPhotoelectrochemical stabilitySnO2 substratePhotoelectrochemical cellsInjection yieldTransient spectroscopySurfaceAqueous photoelectrochemical cellDye photosensitizerIET dynamicsTerahertzElectron transferSeries of linkersDirect contactSpectroscopyAbsorption spectroscopyTransferTransient absorption spectroscopyOverall length
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
2016
High-Potential Porphyrins Supported on SnO2 and TiO2 Surfaces for Photoelectrochemical Applications
Jiang J, Swierk J, Materna K, Hedström S, Lee S, Crabtree R, Schmuttenmaer C, Batista V, Brudvig G. High-Potential Porphyrins Supported on SnO2 and TiO2 Surfaces for Photoelectrochemical Applications. The Journal Of Physical Chemistry C 2016, 120: 28971-28982. DOI: 10.1021/acs.jpcc.6b10350.Peer-Reviewed Original ResearchMetal oxide surfacesTiO2 surfaceTerahertz measurementsPhotoelectrochemical applicationsWater-splitting dye-sensitized photoelectrochemical cellsPhotoelectrochemical cellsOxide surfaceSnO2WS-DSPECsInterfacial electron transferDye-sensitized photoelectrochemical cellsSurfaceHigh potentialCharge recombination kineticsComputational modelingAbsorption spectroscopy
2011
Thermal stability of [Mn(III)(O)2Mn(IV)(H2O)2(Terpy)2](NO3)3 (Terpy=2,2′:6′,2″-terpyridine) in aqueous solution
Zhang F, Cady C, Brudvig G, Hou H. Thermal stability of [Mn(III)(O)2Mn(IV)(H2O)2(Terpy)2](NO3)3 (Terpy=2,2′:6′,2″-terpyridine) in aqueous solution. Inorganica Chimica Acta 2011, 366: 128-133. DOI: 10.1016/j.ica.2010.10.021.Peer-Reviewed Original ResearchOxo dimerMn4Ca clusterAqueous solutionThermal stabilitySolar fuel productionOxygen evolution activityFirst fast stepMn valence changeAtomic absorption spectroscopyCatalytic materialsElemental analysisPS IIManganese dioxideAbsorption spectroscopyConversion of waterNovel MnDimer compoundsMn valenceSlow stepFast stepSolid MnThermal decompositionValence changeUnique materialFuel production