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Liquid plasma spraying of NiO-YSZ anode layers applicable for SOFC
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SYSNO ASEP 0584163 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Liquid plasma spraying of NiO-YSZ anode layers applicable for SOFC Tvůrce(i) Rednyk, Andrii (UFP-V)
Mušálek, Radek (UFP-V) RID, ORCID
Tesař, Tomáš (UFP-V) ORCID
Medřický, Jan (UFP-V) RID
Tsepeleva, A. (CZ)
Lukáč, František (UFP-V) ORCID
Ctibor, Pavel (UFP-V) RID, ORCID
Sedláček, J. (CZ)
Chráska, Tomáš (UFP-V) RID, ORCIDCelkový počet autorů 9 Číslo článku 107855 Zdroj.dok. Materials Today Communications. - : Elsevier - ISSN 2352-4928
Roč. 38, March (2024)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Electrical resistance ; Microstructure ; NiO-YSZ anode ; Porosity ; SOFC, Liquid plasma spraying Vědní obor RIV JP - Průmyslové procesy a zpracování Obor OECD Materials engineering CEP GA22-21478S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 001149072900001 EID SCOPUS 85180936511 DOI 10.1016/j.mtcomm.2023.107855 Anotace Plasma spraying (PS) from liquid feedstocks is a promising alternative for fabricating the NiO-YSZ anodes for Solid Oxide Fuel Cell (SOFC). However, despite the inherent advantages of the PS process, the plasma sprayed anodes are still inferior to the conventional ones prepared by wet-ceramic techniques due to the difficulty of achieving the optimal porosity level. This study shows that due to recent development, the NiO-YSZ anode layers with desirable porosity and microstructure can now be effectively fabricated in a one-step process using PS equipment with a water-argon stabilized plasma torch. As a liquid feedstock, we utilized Ni nitrate (hexahydrate) solutions and YSZ suspensions with different ratios, using ethanol or water as solvents. We show that the ethanol-based feedstock provides a favorable microstructure and porosity of the resulted layers over the water-based one. In addition, apart from NiO and YSZ phases, the layers deposited with ethanol solvent contained even metallic Ni. Different ratios of Ni nitrate to YSZ in ethanol-based feedstocks greatly affected the layer's characteristics - when the content of Ni nitrate was high, the resulting layers had a non-uniform morphology with a very porous microstructure. On the contrary, the equal contents of Ni nitrate and YSZ in the feedstock resulted in the most optimal layer's microstructure, chemical composition, and thus sufficient electrical resistance, making such material potentially useful as anode for SOFC. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2024 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S2352492823025461?via%3Dihub
Počet záznamů: 1