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Wyszukujesz frazę "Atalay, F." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    La-Based Material for Energy Storage Applications
    Autorzy:
    Atalay, F.
    Kaya, H.
    Bingol, A.
    Asma, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032059.pdf
    Data publikacji:
    2017-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    82.47.Uv
    Opis:
    In this work, nanostructured La-based materials were produced by chemical precipitation method onto Cladosporium cladosporioides fungal hyphae in aqueous solution. Materials were annealed at various temperatures between 100°C-600°C. The morphological properties of the synthesized material were studied by transmission electron microscopy. The surface area for sample annealed at 360°C was determined to be 85.64 m²/g using Brunauer-Emmett-Teller method. The nitrogen adsorption and desorption isotherm displayed a typical type-IV isotherm. Electrochemical properties of produced material were studied using cyclic voltammetry, long term charge/discharge analysis and impedance spectroscopy in the 0.5 M Na₂SO₄ electrolyte. The obtained nanostructured porous electrode exhibits quasi-rectangular shaped cyclic voltammetry curves with a specific capacitance of 2190 F/g at a scan rate of 2 mV/s.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 3; 453-456
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetoimpedance Effects in Electrodeposited NiFe Nanowire Array
    Autorzy:
    Aydogmus, E.
    Kaya, H.
    Atalay, F.
    Atalay, S.
    Avcu, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1207745.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.Gf
    81.15.Pq
    75.75.-c
    Opis:
    In this work, NiFe nanowires were grown in highly ordered porous anodic alumina oxide templates by dc electrodeposition at a pH value of 2.6. Scanning electron microscopy showed that wires have diameters of about 250-310 nm and length 25-30 μm. The energy dispersive X-ray analysis showed that the composition of the nanowires is $Ni_{65}Fe_{35}$. Electrical contacts were made on both sides of the nanowire array and their magnetoimpedance properties were investigated. All the magnetoimpedance curves showed single peak behavior due to the high shape anisotropy. The maximum magnetoimpedance change at the 79 MHz driving current frequency was ≈ 1.45%.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 227-229
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetoresistance of Electrodeposited Co/Cu Multilayer Nanowires
    Autorzy:
    Avcu, D.
    Atalay, F.
    Atalay, S.
    Kaya, H.
    Aydogmus, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401297.pdf
    Data publikacji:
    2015-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.Gf
    81.15.Pq
    75.75.-c
    Opis:
    Co/Cu multilayer nanowires were electrodeposited potentiostatically on highly ordered porous anodic alumina oxide templates. Scanning electron microscopy (SEM) showed that wires have diameters of about 250-300 nm and length of 40-50 μm. Co/Cu multilayer nanowire arrays embedded in anodic alumina oxide were mechanically polished with diamond in a suspension of oil until the wires appeared. Then the top and bottom surfaces of the material were coated with a layer of Au with a thickness of 100 nm for electrical contacts. Magnetic field was applied by an electromagnet and resistance was measured by four point technique.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 4; 1115-1117
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetoresistance of Electrochemically Produced NiFe and CoNiFe Nanowires
    Autorzy:
    Avcu, D.
    Atalay, F.
    Aydogmus, E.
    Kaya, H.
    Atalay, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1215584.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.Gf
    81.15.Pq
    75.75.-c
    Opis:
    CoNiFe and NiFe nanowires were electrochemically produced by dc electrodeposition on highly ordered porous anodic alumina oxide templates. Scanning electron microscope images of nanowires after removing the alumina membrane showed that these nanowires are uniform with the diameters of about 220-300 nm and about 25-30 μm length. The energy dispersive X-ray analysis showed that the composition of the nanowires is $Ni_{88}Fe_{12}$, $Co_7Ni_{82}Fe_{11}$. Magnetic field was applied by an electromagnet and resistance was measured by four point technique.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 230-231
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production of Y-Ba-Cu-O Nanowires and Nanotubes by Electrochemical Method
    Autorzy:
    Kaya, H.
    Atalay, F.
    Avsar, D.
    Yagmur, V.
    Atalay, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399690.pdf
    Data publikacji:
    2013-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.Gf
    81.07.De
    81.15.Pq
    74.78.-w
    Opis:
    In this work, the technological aspects of great importance $YBa_2Cu_3O_{7-x}$ superconducting materials were produced in the form of nanotube by electrochemical method. The electrochemical deposition conditions for the Y-Ba-Cu deposition in nanoporous $Al_2O_3$ were investigated. The heat treatment was applied to $Y-Ba-Cu//Al_2O_3$ nanopatterns, to form superconductive phase. The resulting nanostructures were found to be in length 4-5 μm, 177-210 nm in diameter. The produced nanostructures at - 4 V and more positive potentials were Y-Ba-Cu nanowires, while the nanostructures deposited at the more negative potentials were of nanotube form.
    Źródło:
    Acta Physica Polonica A; 2013, 123, 2; 209-211
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrochemical Capacitance of Cobalt Oxide Nanotubes on Nickel Foam
    Autorzy:
    Yagmur, V.
    Atalay, F.
    Kaya, H.
    Avcu, D.
    Aydogmus, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399695.pdf
    Data publikacji:
    2013-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.De
    82.47.Uv
    88.80.fh
    Opis:
    In this study, densely packed $Co_3O_4$ nanotubes for supercapacitors have been obtained by means of chemically depositing cobalt hydroxide within a porous anodic aluminum oxide and then annealed at 360°C. The morphological properties obtained $Co_3O_4$ nanotubes were studied by scanning electron microscopy, the chemical composition was determined by examination of the energy dispersive X-ray spectra. Supercapacitor characteristics such as charging/discharging and impedance (Z) characteristics were also examined.
    Źródło:
    Acta Physica Polonica A; 2013, 123, 2; 215-217
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Fabrication of NiO Microtubes Using Bacillus subtilis/Bacteria
    Autorzy:
    Atalay, F.
    Asma, D.
    Aydogmus, E.
    Turanci, H.
    Kaya, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195249.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    82.47.Uv
    88.80.fh
    Opis:
    The nickel oxide microtubes with high surface-to-volume ratio have been achieved using the Bacillus subtilis bacteria. Surface properties of the metal-oxide nanostructured materials were investigated by electron microscopy. The surface area of that was also studied by the Brunauer-Emmett-Teller analysis method. The materials were used at the construction of supercapacitor as an electrode active material.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 235-237
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Formation of Free Standing NiO Nanostructures on Nickel Foam for Supercapacitors
    Autorzy:
    Atalay, F.
    Aydogmus, E.
    Yigit, H.
    Avcu, D.
    Kaya, H.
    Atalay, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1194862.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    82.47.Uv
    88.80.fh
    Opis:
    In this study, free standing NiO nanostructures for supercapacitors were obtained by means of chemically depositing of nickel oxide on Ni foam and then they were annealed at various temperatures. The morphological properties of densely covered Ni foams were studied by scanning electron microscopy. Supercapacitor characteristics, such as charging/discharging and impedance characteristics, were also examined.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 224-226
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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