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 mechanism
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
2018
Unusual Stability of a Bacteriochlorin Electrocatalyst under Reductive Conditions. A Case Study on CO2 Conversion to CO
Jiang J, Matula A, Swierk J, Romano N, Wu Y, Batista V, Crabtree R, Lindsey J, Wang H, Brudvig G. Unusual Stability of a Bacteriochlorin Electrocatalyst under Reductive Conditions. A Case Study on CO2 Conversion to CO. ACS Catalysis 2018, 8: 10131-10136. DOI: 10.1021/acscatal.8b02991.Peer-Reviewed Original ResearchCO Faradaic efficiencyAg/AgClBulk electrolysisMA/cm2Organic ligandsFaradaic efficiencyReductive catalysisRobust electrocatalystsPorphyrin counterpartsDFT calculationsSevere stability issuesCO2 conversionCO2 reductionReductive conditionsUnusual stabilityCatalytic stepLigand degradationTotal current densityMolecular originCurrent densityElectrocatalystsCO2 fixationLigandsObserved stabilityBioinspired study