Search results for " polyvinylpyrrolidone"

showing 2 items of 2 documents

Wild

2021

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0106 biological sciencesGermplasmPhytochemistryTPCC total phenolic contentElderberry flowerISSR inter-simple sequence repeatElderberry fruitIC50 the half maximal inhibitory concentrationBerrySambucus nigra01 natural sciencesArticleTFC total flavonoid contentDW dry weightSARS-CoV2 severe acute respiratory syndrome coronavirus 2Rutinchemistry.chemical_compoundBotanyELISA enzyme linked immunosorbent assayCultivarAntiviralComputingMethodologies_COMPUTERGRAPHICSGenetic diversityACE2 angiotensin converting enzyme 2biology010405 organic chemistryPVPP polyvinylpyrrolidoneSambucus nigra L.biology.organism_classification0104 chemical scienceschemistryHPLC high-performance liquid chromatographyTEAC trolox equivalent anti-radical capacityGene poolAgronomy and Crop Science010606 plant biology & botanyBinding domainIndustrial crops and products
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Synergetic effect of gold in Au/Pd catalysts during hydrodesulfurization reactions of model compounds

2003

Abstract The simultaneous formation of colloidal dispersions of Pd and Au metal particles protected by the organic polymer polyvinylpyrrolidone (PVP) in reducing alcohol solution was used for the synthesis of new silica-supported monometallic and bimetallic Au x Pd y catalysts with different x / y ratios. The samples, with a 2 wt% total metal loading, after air calcinations at 673 K to remove the PVP, were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and FTIR spectra of chemisorbed CO. Formation of alloyed Au x Pd y particles of different metal composition with consequent modification of their electronic and geometric properties was ascertained. The catalytic activi…

Inorganic chemistrychemistry.chemical_elementCatalysisCatalysisMetalchemistry.chemical_compoundAu-Pd catalysts; Polyvinylpyrrolidone; Hydrodesulfurization; HDS; Thiophene; DibenzothiophenechemistryTransition metalDibenzothiophenevisual_artThiophenevisual_art.visual_art_mediumPhysical and Theoretical ChemistryBimetallic stripHydrodesulfurizationPalladiumJournal of Catalysis
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