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Title: Solid oxide fuel cell anode surface modification by magnetron sputtering of NiO/YSZ thin film
Authors: Soloviev, Andrey Aleksandrovich
Shipilova, A. V.
Ionov, Igor Vyacheslavovich
Smolyanskiy, Egor Aleksandrovich
Lauk, Aleksandr Lukyanovich
Kovalchuk, Anastasia Nikolaevna
Remnev, Gennady Efimovich
Lebedinsky, Aleksey Mikhaylovich
Keywords: модификации; топливные элементы; оксиды; магнетронное распыление; тонкие пленки; подложки; микроструктура; фазовый состав; анодные слои
Issue Date: 2017
Publisher: IOP Publishing
Citation: Solid oxide fuel cell anode surface modification by magnetron sputtering of NiO/YSZ thin film / A. A. Soloviev [et al.] // Journal of Physics: Conference Series. — 2017. — Vol. 830 : Energy Fluxes and Radiation Effects 2016 : 5th International Congress, 2–7 October 2016, Tomsk, Russian Federation : [materials]. — [012106, 6 p.].
Abstract: NiO/ZrO[2]-Y[2]O[3] (NiO/YSZ) anode functional layers (AFL) with 16-60 vol.% of NiO were deposited onto NiO/YSZ anode substrates by magnetron sputtering, followed by annealing in air at 1200 °C. The optimal deposition conditions for NiO/YSZ were determined. NiO content in the films was varied by changing the oxygen flow rate during the sputtering process. The microstructure and phase composition of NiO/YSZ anode functional layer were studied by SEM and XRD methods. Anode functional layers were fully crystallized and comprised of grains up to 500 nm in diameter after reduction in hydrogen. Anode-supported solid oxide fuel cells (SOFC) with the diameter of 20 mm including the magnetron sputtered AFL, 4-microns thick YSZ electrolyte and La[0.6]Sr[0.4]Co[0.2]Fe[0.8]O[3]/Ce[0.9]Gd[0.1]O[2] (LSCF/CGO) cathode were fabricated and tested. Electrochemical properties of the single fuel cells were investigated as a function of NiO volume content in AFL and AFL thickness.
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