Search results for "CO2reduction"

showing 2 items of 2 documents

ZrO2 Based materials as photocatalysts for 2-propanol oxidation by using UV and solar light irradiation and tests for CO2 reduction

2018

Abstract Bare ZrO2, Ce doped ZrO2 and Er doped ZrO2 samples have been prepared by a hydrothermal process and have been used as photocatalysts for 2-propanol oxidation reaction in gas solid regime. Moreover, some preliminary tests have been carried out for CO2 reduction. The samples were physico-chemically characterized and both bare and doped ZrO2 based materials resulted active for oxidation and reduction reactions by using UV and solar irradiation. The reactivity results have been correlated with the compositional, structural and morphological features of the photocatalysts.

2-Propanol oxidation; Ce doped ZrO2; CO2 reduction; Er doped ZrO2; Photocatalysis; ZrO2; Catalysis; Chemistry (all)Materials science02 engineering and technology010402 general chemistryPhotochemistry01 natural sciencesRedoxHydrothermal circulationCatalysisCatalysisPropanolchemistry.chemical_compoundPhotocatalysiZrO2Reactivity (chemistry)IrradiationPhotocatalysisDoping2-Propanol oxidationChemistry (all)Er doped ZrO2General Chemistry021001 nanoscience & nanotechnology0104 chemical sciencesCe doped ZrO2chemistryCO2 reductionPhotocatalysis2-Propanol oxidation Ce doped ZrO2 CO2 reduction Er doped ZrO 2 Photocatalysis ZrO2Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technologyCO2reduction
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Electrochemical conversion of CO2 to HCOOH at tin cathode in a pressurized undivided filter-press cell

2018

Abstract The electrochemical reduction of carbon dioxide to formic acid was performed for the first time in a pressurized filter-press cell with a continuous recirculation of the electrolytic solution (0.9 L) at a tin cathode. It was shown that the performances of the system are comparable or slightly better than that of a batch system with a smaller volume (0.05 L). The selection of proper values of both current density and CO2 pressure allowed to achieve quite high values of faradaic efficiencies. Long-time electrolyses have shown that the system is stable and that it can allow to generate quite high concentrations of HCOOH (about 0.4 M).

Materials scienceFormic acidScale-upGeneral Chemical Engineeringchemistry.chemical_elementFormic acid02 engineering and technologyElectrolyte010402 general chemistryElectrochemistry01 natural scienceslaw.inventionchemistry.chemical_compoundlawPressureElectrochemistryChemical Engineering (all)Electrochemical reduction of carbon dioxideElectrochemical reductionSettore ING-IND/27 - Chimica Industriale E Tecnologica021001 nanoscience & nanotechnologyCathode0104 chemical sciencesFilter presschemistryVolume (thermodynamics)Chemical engineering0210 nano-technologyTinCO2reductionElectrochimica Acta
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