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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Study of the Ni/Fe nanotubes propertiesтезисы доклада
- Авторы: Zhanbotin Arman, Kozlovskiy Artem, Kadyrzhanov Kairat, Rusakov Vyacheslav, Manakova Irina, Ozernoy Alexey, Zdorovets Maxim
- Сборник: 9th International Symposium on Swift Heavy Ions in Matter (SHIM). Abstract book
- Тезисы
- Год издания: 2015
- Место издания: Darmstadt, Germany
- Первая страница: 102
- Последняя страница: 102
- Аннотация: In recent years, 1D nanostructures are actively studied in the field of nanoscience and technology due to their unique properties, which are different from crystalline powders. There are a lot of methods to obtain nanostructures. This work considers the process of Ni/Fe nanotubes obtaining by template synthesis method; magnetic properties were evaluated by Mössbauer spectroscopy. The track membranes (TM) based on the Hostaphan® type polyethylene-terephthalate (PET) with a pores density 1,0·109 cm-2 and a diameter 110 ± 5 nm were used as templates for Ni/Fe nanotubes template synthesis. The electrolyte composition is NiSO4 × 7H2O (110 g/l), FeSO4 × 7H2O (110 g/l), NiCl2 × 6H2O (5 g/l), H3BO3 (25 g/l) С6Н8О6(3 g/l). The template synthesis was carried out in a potentiostatic mode at a voltage of 2V at room temperature for 210 seconds. Constant pH = 3 acidity level was controlled by ascorbic acid loading which prevents Fe2+ to Fe3+ oxidation. The deposition process control was carried out by chronoamperometry using the Agilent 34410A multimeter. According to the X-ray diffraction results, the Fe-Ni doublet was observed: FCC nickel with the lattice parameter of 3,540 Å and BCC iron with a lattice parameter of 2,866 Å. Mössbauer studies were carried out using the MS1104Em spectrometer. The values of hyperfine magnetic field localized in the field range from 280 to 360 kOe. This means that magnetically ordered iron oxides (a-Fe2O3, g-Fe2O3, Fe3O4) cannot be detected in the nanotubes composition. In this case, typical local maxima were observed in the hyperfine field distribution p(Hn) due to different local environments of Mössbauer Fe - atom. Formed magnetic domains have sizes close to the nanotubes thickness with their magnetization vector is oriented at an angle of 36.330 ± 0.9° to the axis of the nanotubes. Overall, the research demonstrates promising Ni/Fe nanostructures application in the development of nano-electronics.
- Добавил в систему: Русаков Вячеслав Серафимович