Search Results - "MACOVEI, D"

High hexitols selectivity in cellulose hydrolytic hydrogenation over platinum (Pt) vs. ruthenium (Ru) catalysts supported on micro/mesoporous carbon by Lazaridis, P.A., Karakoulia, S.A., Teodorescu, C., Apostol, N., Macovei, D., Panteli, A., Delimitis, A., Coman, S.M., Parvulescu, V.I., Triantafyllidis, K.S.

“…[Display omitted] •Highly dispersed Pt and Ru nanoparticles (≤4nm) on micro/mesoporous AC or AC-SO3H.•Co-existence of metallic nanoparticles and amorphous…”
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Structural and photocatalytic properties of iron- and europium-doped TiO2 nanoparticles obtained under hydrothermal conditions by Diamandescu, L., Vasiliu, F., Tarabasanu-Mihaila, D., Feder, M., Vlaicu, A.M., Teodorescu, C.M., Macovei, D., Enculescu, I., Parvulescu, V., Vasile, E.

“…Iron- and europium-doped ( < =1 at.%) TiO2 nanoparticles powders have been synthesized by a hydrothermal route at 200 deg C, starting with TiCl4, FeCl3*6H2O…”
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Synthesis and structural characteristics of nitrogen doped TiO2 aerogels by POPA, M, MACOVEI, D, INDREA, E, MERCIONIU, I, POPESCU, I. C, DANCIU, V

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On the hydrophilicity of nitrogen-doped TiO2 thin films by MARDARE, D, LUCA, D, TEODORESCU, C.-M, MACOVEI, D

“…Nitrogen doping was proposed recently as a low-cost means to shift the absorption edge of titania towards 450-500nm. Results are reported here on the…”
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Independent and complementary bio-functional effects of CuO and Ga2O3 incorporated as therapeutic agents in silica- and phosphate-based bioactive glasses by T. Tite, A.C. Popa, B.W. Stuart, H.R. Fernandes, I.M. Chirica, G.A. Lungu, D. Macovei, C. Bartha, L. Albulescu, C. Tanase, S. Nita, N. Rusu, D.M. Grant, J.M.F. Ferreira, G.E. Stan

“…The incorporation of therapeutic-capable ions into bioactive glasses (BGs), either based on silica (SBGs) or phosphate (PBGs), is currently envisaged as a…”
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Characterization of titania thin films prepared by reactive pulsed-laser ablation by Luca, D., Macovei, D., Teodorescu, C.-M.

“…Results are reported on the characterization of 200–250 nm thick TiO x transparent films grown at temperatures of 150 °C and 500 °C by reactive pulsed-laser…”
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Pure and doped lanthanum manganites obtained by combustion method by Berger, D., Matei, C., Papa, F., Macovei, D., Fruth, V., Deloume, J.P.

“…Pure and strontium-doped lanthanum manganite nanopowders were obtained by solution combustion method using metal nitrates as oxidants and different organic…”
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Preparation and characterization of increased-efficiency photocatalytic TiO2-2xNx thin films by LUCA, D, TEODORESCU, C.-M, APETREI, R, MACOVEI, D, MARDARE, D

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New polypyrrole-multiwall carbon nanotubes hybrid materials by Turcu, R, Darabont, Al, Nan, A, Aldea, N, MacOvei, D, Bica, D, Vekas, L, Pana, O, Soran, M L, Koos, A A, Biro, L P

“…We report the synthesis and characterization of new hybrid materials based on conducting polypyrrole (PPY) and multi wall carbon nanotubes (MWCNTs). MWCNTs…”
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Structural studies on some doped CdS thin films deposited by thermal evaporation by Iacomi, F., Purica, M., Budianu, E., Prepelita, P., Macovei, D.

“…The influence of the Mn, Se and Sb impurities on the structure and morphology of CdS thin films grown on p + Si wafers was studied. The starting powders were…”
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Structure, morphology and magnetic properties of Fe–Au core-shell nanoparticles by Pana, O., Teodorescu, C.M., Chauvet, O., Payen, C., Macovei, D., Turcu, R., Soran, M.L., Aldea, N., Barbu, L.

“…The aim of the present work is the investigation of the core-shell Fe@Au nanoparticles obtained by the inverse micelles method. Also hybrid structures between…”
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BiOx clusters occluded in a ZSM-5 matrix: preparation, characterization, and catalytic behavior in liquid-phase oxidation of hydrocarbons by DUMITRIU, D, BARJEGA, R, FRUNZA, L, MACOVEI, D, HU, T, XIE, Y, PARVULESCU, V. I, KALIAGUINE, S

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The influence of the substrate nature on the iron repartition in the titania matrix by Iacomi, Felicia, Mardare, Diana, Grecu, Maria N., Macovei, D., Vida-Simiti, Ioan

“…Fe-doped titania films were deposited by RF sputtering onto different substrates (glass and ITO/glass) in the same deposition run. The rutile nanocrystalline…”
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Nanostructured thin layers of vanadium oxides doped with cobalt, prepared by pulsed laser ablation: chemistry, local atomic structure, morphology and magnetism by Teodorescu, C.M., Socol, G., Negrila, C., Luca, D., Macovei, D.

“…Cobalt-doped vanadium oxide thin layers prepared by pulsed laser ablation are investigated from the following points of view: (1) the chemical states by X-ray…”
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EXAFS investigation of iron local environment in metal-doped titania photocatalysts prepared by hydrothermal and high-energy ball milling routes by Vasiliu, F., Diamandescu, L., Macovei, D., Teodorescu, C. M., Nicula, R.

“…Iron local environment was investigated by EXAFS in Fe- and (Fe, Eu)-doped TiO 2 photocatalysts, prepared by hydrothermal and high-energy ball milling (HEBM)…”
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Physical characterization of CdMnS nanocrystalline thin films grown by vacuum thermal evaporation by Iacomi, F, Salaoru, I, Apetroaei, N, Vasile, A, Teodorescu, C M, Macovei, D

“…CdMnS ternary alloys have attracted much attention because they permit to tune the energy gap, the effective mass and the lattice constant by varying the…”
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STRUCTURAL AND MAGNETIC INVESTIGATIONS OF NICKEL CLUSTERS IN C60 MATRICES by Teodorescu, C M, Macovei, D, Lungu, A

“…Nanostructured Ni/C60 thin films, produced by co-evaporation of Ni and fullerene, have been investigated by both X-ray diffraction (XRD) and X-ray magnetic…”
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Reducibility of ruthenium in relation with zeolite structure by Pârvulescu, V.I., Coman, S., Palade, P., Macovei, D., Teodorescu, C.M., Filoti, G., Molina, R., Poncelet, G., Wagner, F.E.

“…Ru-zeolites prepared via deposition of aqueous solution of ruthenium chloride on X, L, ZSM-5 and APO-54 were investigated. The impregnated solids were…”
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Properties of titanium based hard coatings deposited by the cathodic arc method I. Microchemical and microstructural characteristics by Balaceanu, M, Braic, M, Macovei, D, Genet, M J, Manea, A, Pantelica, D, Braic, V, Negoita, F

“…TiN, TiC and Ti(C,N) hard coatings were deposited on Si substrates by a cathodic arc system. Various investigation techniques (ERDA, XPS, and XRD) were used to…”
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Evidence for metal-C60 interface interaction from Raman spectroscopy by Manaila, R., Belu-Marian, A., Macovei, D., Brehm, G., Marian, D. Th, Baltog, I.

“…Thin Cu–C60 films were prepared by vacuum co‐deposition and investigated by Raman spectroscopy. Evidence was found for alteration of the intramolecular…”
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