Search results for "H2 evolution"

showing 2 items of 2 documents

Reduced grey brookite for noble metal free photocatalytic H2evolution

2021

Herein we introduce for the first time a reduced “grey” brookite TiO2 photocatalyst, produced by thermal hydrogenation of brookite nanoparticles, that shows a remarkable noble metal free photocatalytic H2 evolution. Its activity is substantially higher than that of other TiO2 polymorphs, i.e. anatase or rutile, comparably sized and activated by hydrogenation under optimized conditions. Along with brookite powders, an oriented brookite single crystal was investigated as a defined surface to confirm the effects of the hydrogenation treatment. By a combination of electron paramagnetic resonance (EPR), electron and X-ray characterization techniques applied to the powders and single crystal, we …

AnataseMaterials scienceRenewable Energy Sustainability and the EnvironmentBrookiteNanoparticle02 engineering and technologyGeneral ChemistryTiO2 brookite H2 evolutionengineering.material010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesAmorphous solidChemical engineeringRutilevisual_artPhotocatalysisengineeringvisual_art.visual_art_mediumGeneral Materials ScienceNoble metalSettore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technologySingle crystalJournal of Materials Chemistry A
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C3N4/reduced graphene oxide photocatalysts loaded with Ag or Ag/Pt for H2 evolution from aqueous solution of triethanolamine

2023

Composites of C3N4/reduced graphene oxide have been used as photocatalysts for triethanolamine photo- reforming with H2 generation in aqueous solution. The rate of H2 production over the Ag loaded best per- forming photocatalyst reached 525 μmol⋅h

Platinum cocatalystC3N4/reduced graphene oxidePhotoreformingGeneral ChemistrySilver cocatalystSettore CHIM/06 - Chimica OrganicaSettore CHIM/07 - Fondamenti Chimici Delle TecnologieH2 evolutionCatalysis
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