2024
Photoinduced Surface Oxidation of GaN Nanowires Facilitates Hydrogen Evolution
Menzel J, Dong W, Gruszecki E, Yang K, Mi Z, Batista V. Photoinduced Surface Oxidation of GaN Nanowires Facilitates Hydrogen Evolution. ACS Catalysis 2024, 14: 13314-13323. DOI: 10.1021/acscatal.4c00308.Peer-Reviewed Original ResearchHydrogen evolutionDensity functional theoryEffect of surface oxidationGaN NWsSurface oxidationPhotocatalytic hydrogen evolutionWater oxidation capabilityPhotoelectrochemical hydrogen evolutionLinear sweep voltammetrySolar energy storageCatalytic performanceGallium nitride nanowiresPhotocatalytic surfacesWater oxidationLight irradiationSweep voltammetryGallium oxynitrideFunctional theoryChronoamperometric measurementsElectronic structureValence band edge statesOxide surfaceAdsorbed hydroxideOxidation capabilityNitride nanowires
2022
Microbial biofilms as living photoconductors due to ultrafast electron transfer in cytochrome OmcS nanowires
Neu J, Shipps CC, Guberman-Pfeffer MJ, Shen C, Srikanth V, Spies JA, Kirchhofer ND, Yalcin SE, Brudvig GW, Batista VS, Malvankar NS. Microbial biofilms as living photoconductors due to ultrafast electron transfer in cytochrome OmcS nanowires. Nature Communications 2022, 13: 5150. PMID: 36071037, PMCID: PMC9452534, DOI: 10.1038/s41467-022-32659-5.Peer-Reviewed Original ResearchConceptsUltrafast electron transferElectron transferPhotoconductive atomic force microscopyFemtosecond transient absorption spectroscopyQuantum dynamics simulationsMicrobial electron transferAtomic force microscopyTransient absorption spectroscopyValue-added chemicalsIndividual nanowiresWhole-cell catalysisPhotoconductive materialForce microscopyCarrier densityCatalytic performanceNanowiresAbsorption spectroscopyPhotoactive proteinsEfficient productionPhotoconductorsSynthetic photosensitizersDynamics simulationsGeobacter sulfurreducensBiodegradable materialsElectronic interface
2019
Water Network Dynamics Next to the Oxygen-Evolving Complex of Photosystem II
Reiss K, Morzan U, Grigas A, Batista V. Water Network Dynamics Next to the Oxygen-Evolving Complex of Photosystem II. Inorganics 2019, 7: 39. DOI: 10.3390/inorganics7030039.Peer-Reviewed Original ResearchOxygen-evolving complexWater network dynamicsMolecular dynamics simulationsPhotosystem IICatalytic performanceHydrogen bondingProtein environmentLarge ionsS2 stateDynamics simulationsLarge channelsProton translocationWater diffusionComplexesPSII assemblyEigenvector centrality analysisWater networkGreat interestWater channelsDynamical natureBondingIonsWater transportMajor channelChloride
2018
Distinct Binding of Rhenium Catalysts on Nanostructured and Single-Crystalline TiO2 Surfaces Revealed by Two-Dimensional Sum Frequency Generation Spectroscopy
Vanselous H, Videla P, Batista V, Petersen P. Distinct Binding of Rhenium Catalysts on Nanostructured and Single-Crystalline TiO2 Surfaces Revealed by Two-Dimensional Sum Frequency Generation Spectroscopy. The Journal Of Physical Chemistry C 2018, 122: 26018-26031. DOI: 10.1021/acs.jpcc.8b08423.Peer-Reviewed Original ResearchTwo-dimensional sum frequency generation spectroscopySum frequency generation spectroscopyFrequency generation spectroscopyTiO2 surfaceGeneration spectroscopySingle-crystalline TiO2 surfacesCO2 reduction catalystsSelective catalytic performanceDifferent TiO2 surfacesVibrational relaxation pathwaysVibrational relaxation dynamicsAb initio simulationsComplex electronic structureMolecular catalystsCross-peak patternsReduction catalystSolvation environmentCatalytic performanceRhenium catalystsTiO2 electrodeCarbonyl modesCatalystInitio simulationsElectronic structureRelaxation pathways
2016
Formate to Oxalate: A Crucial Step for the Conversion of Carbon Dioxide into Multi‐carbon Compounds
Lakkaraju P, Askerka M, Beyer H, Ryan C, Dobbins T, Bennett C, Kaczur J, Batista V. Formate to Oxalate: A Crucial Step for the Conversion of Carbon Dioxide into Multi‐carbon Compounds. ChemCatChem 2016, 8: 3453-3457. DOI: 10.1002/cctc.201600765.Peer-Reviewed Original ResearchMulti-carbon compoundsDensity functional theory calculationsSelective catalytic conversionIndustrial-scale synthesisFunctional theory calculationsChain reaction mechanismCatalytic performanceIon catalystAlkali formateIon catalysisConversion of formateBond formationCatalytic conversionQuantitative conversionIon intermediateReaction conditionsRaman spectroscopyTheory calculationsReaction mechanismCatalytic mechanismSodium hydrideOxalate saltsSodium formateFormateEfficient conversion
2015
Behavior of the Ru-bda Water Oxidation Catalyst Covalently Anchored on Glassy Carbon Electrodes
Matheu R, Francàs L, Chernev P, Ertem M, Batista V, Haumann M, Sala X, Llobet A. Behavior of the Ru-bda Water Oxidation Catalyst Covalently Anchored on Glassy Carbon Electrodes. ACS Catalysis 2015, 5: 3422-3429. DOI: 10.1021/acscatal.5b00132.Peer-Reviewed Original ResearchWater oxidation catalystsX-ray absorption spectroscopyElectrode surfaceHybrid materialsGlassy carbonOxidation catalystHeterogeneous water oxidation catalystsGC electrode surfaceGlassy carbon electrodeRu-aqua complexesLow catalytic performanceOxidation of waterNew hybrid materialsGC electrodeElectrochemical reductionCarbon electrodeCovalent graftingActive catalystGood electrocatalystCatalytic performanceVoltammetric experimentsElectrochemical techniquesMetal oxidesAbsorption spectroscopyMolecular complexes