0000000000943544

AUTHOR

Aida Serrano

showing 3 related works from this author

Local structure of the supported Keggin and Wells-Dawson heteropolyacids and its consequence on their (photo)catalytic activity

2018

Inorganic ChemistryPhoto catalyticMaterials scienceStructural BiologySettore CHIM/03 - Chimica Generale E InorganicaEXSAFS local structure Keggin and Wells-Dawson HPAGeneral Materials ScienceSettore CHIM/07 - Fondamenti Chimici Delle TecnologiePhysical and Theoretical ChemistryCondensed Matter PhysicsPhotochemistryBiochemistryLocal structure
researchProduct

Heteropolyacids supported on boron nitride and carbon nitride for catalytic and catalytic photo-assisted alcohol dehydration

2021

Keggin H3PW12O40 (PW12) and Wells-Dawson H6P2W18O60 (P2W18) heteropolyacids (HPAs) are photo(catalysts) for various acid-promoted and redox catalytic reactions. Their activity increases if they are deposited on certain supports as metal oxides or carbon materials. Although the surface area and acid-base interactions of the HPAs with supports are considered as key factors for the performance of the binary material, the role of the local structure changes in the HPAs upon their immobilization on solids must be also of primary importance, directly affecting both acidity and photoredox properties. Here, the (photo)catalytic performance of Keggin and Wells-Dawson heteropolytungstates supported o…

Materials sciencePhoto assistedAlcohol02 engineering and technology010402 general chemistry01 natural sciencesCatalysisCatalysis2-Propanol dehydration Boron nitride Carbon nitride Heteropolyacid Keggin Photocatalysis Wells-Dawsonchemistry.chemical_compoundHeteropolyacid | KegginWells-Dawsonmedicine2-Propanol dehydrationDehydrationPhotocatalysisCarbon nitrideGeneral ChemistryCarbon nitrides021001 nanoscience & nanotechnologymedicine.disease0104 chemical sciencesBoron nitrideKeggin Wells-Dawson Heteropolyacid Boron nitride Carbon nitride 2-Propanol dehydration PhotocatalysischemistryBoron nitrideSettore CHIM/07 - Fondamenti Chimici Delle TecnologieMethanol0210 nano-technologyNuclear chemistryCatalysis Today
researchProduct

Local Structure of Supported Keggin and Wells-Dawson Heteropolyacids and Its Influence on the Catalytic Activity

2019

[EN] Keggin [PW12O40]3– and Wells–Dawson [P2W18O62]6– heteropolyanions are nanosized transition-metal-oxygen clusters belonging to the heteropolyacids (HPAs) family. They are widely used as catalysts due to their high Brønsted acidity, and their dispersion on solid supports favors the accessibility to their acid sites generally increasing the catalytic activity. A series of binary materials composed of Keggin or Wells–Dawson HPAs and SiO2, TiO2, and ZrO2 have been prepared by impregnation or solvothermal methods. Remarkable differences have been found in the catalytic activities among the unsupported and supported HPAs. These differences have been correlated in the past to the structural ch…

X-ray photoelectron spectroscopyX-ray absorption near edge spectroscopy;Cluster chemistryChemistryOxides02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesLocal structureX-ray absorption near edge spectroscopy0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCatalysisCrystallographyGeneral EnergySettore CHIM/03 - Chimica Generale E InorganicaSupported Keggin and Wells-Dawson HeteropolyacidsSettore CHIM/07 - Fondamenti Chimici Delle TecnologiePhysical and Theoretical Chemistryheteropolyacids Keggin Wells-Dawson catalysis polyoxometalates EXAFS0210 nano-technologyMaterials
researchProduct