0000000000789756

AUTHOR

Lidiya Kulikova

showing 4 related works from this author

Catalyst activation of silica nano-based pore structure material for hydrogen storage

2011

Silica based composite material with palladium synthesized by extractive-pyrolytic method is used for hydrogen absorption-desorption experiments. The results obtained of the study on dynamic sorption experiments showed that Pyrex glass based composite sample reaches high hydrogen concentration in the material quite fast. Thought silica gel based composite material rapidly reaches 1/2 of hydrogen load but afterwards the amount of hydrogenation increases slowly. The overall amount of absorbed hydrogen for Pyrex glass based material exceeds the amount of absorbed hydrogen by silica gel based material approximately 5.6 times.

Materials scienceHydrogenSilica gelCryo-adsorptionInorganic chemistrychemistry.chemical_elementSorptionCatalysischemistry.chemical_compoundHydrogen storagechemistryChemical engineeringNano-PalladiumIOP Conference Series: Materials Science and Engineering
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Comparative study of the luminescence properties of macro- and nanocrystalline MgO using synchrotron radiation

2013

MgO nano-powder with an average crystallite size of nanoparticles ranging 10-15 nm was synthesized using the extractive-pyrolytic method and was studied by room temperature VUV spectroscopy under synchrotron radiation excitation. Comparative analysis of their luminescent properties with that of mac- rocrystalline powder analogues and an MgO single crystal, grown by the arc-fusion method, has been per- formed under excitation by pulsed VUV synchrotron radiation. Special attention was paid to VUV spectral range, which is not reachable with commonly used lamp and laser sources. A considerable blue shift of about 0.3 eV in the excitation spectra of 2.95 eV emission band, was revealed in nanocry…

010302 applied physicsNuclear and High Energy PhysicsMaterials scienceAnalytical chemistrySynchrotron radiation02 engineering and technology021001 nanoscience & nanotechnologyLaser01 natural sciencesNanocrystalline materiallaw.inventionlaw0103 physical sciencesddc:530Crystallite0210 nano-technologyLuminescenceSpectroscopyInstrumentationSingle crystalExcitationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Synthesis and properties of magnetic iron oxide/platinum nanocomposites

2015

Iron oxide/platinum nanocomposites have been synthesized by the extractive-pyrolytic method (EPM) involving gradual decomposition of iron capronate and n-trioctylammonium hexachloroplatinate initially produced by solvent extraction. The content of platinum in the composites was 1.2 wt%, 2.4 wt% and 4.8 wt%. Phase composition, morphology and magnetic properties of the produced materials were investigated. XRD analysis and magnetic measurements show that the magnetic phase (magnetite Fe3O4) dominates in a carrier sample produced by the pyrolysis of iron carboxylate, but hematite α-Fe2O3 exists there as an admixture. Referring to the TEM results, the produced composites contain ultra-disperse …

Materials scienceNanocompositeInorganic chemistryIron oxidechemistry.chemical_elementHematitechemistry.chemical_compoundchemistryvisual_artvisual_art.visual_art_mediumCarboxylateHexachloroplatinatePlatinumPyrolysisMagnetiteNuclear chemistryIOP Conference Series: Materials Science and Engineering
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Extractive-Pyrolytic Method for Au/MeO<sub>x</sub> Nanocomposites Production

2014

Au/MeOx(MeOx- SiO2, Al2O3and TiO2) nanocomposites have been produced by the extractive-pyrolytic method. An organic extract – a solution of n-trioctylammonium tetrachlorolaurate ([Oct3NH]AuCl4) in toluene – was used as a gold-containing precursor. The produced samples were analyzed by IR spectroscopy, X-ray diffraction and scanning electron microscopy. The performed studies have shown that the mean size of the metal crystallites vary within wide limits: on Al2O3from 60 nm to 35 nm; on SiO2from 33 nm to 23 nm; on TiO2from 50 nm to 13 nm.

DiffractionMaterials scienceNanocompositeScanning electron microscopeMechanical EngineeringAnalytical chemistryInfrared spectroscopyTolueneMetalchemistry.chemical_compoundchemistryMechanics of Materialsvisual_artvisual_art.visual_art_mediumGeneral Materials ScienceCrystallitePyrolytic carbonKey Engineering Materials
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