FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4309813901> ?p ?o ?g. }

• W4309813901 endingPage "1781" @default.
• W4309813901 startingPage "1781" @default.
• W4309813901 abstract "Introduction Reversible solid oxide cells (r-SOCs, or solid oxide reversible cells) are devices that can efficiently operate in both fuel cell and electrolysis operating modes. It is expected that they can serve as a technology for green, flexible, and efficient energy systems coupled with renewable energy (1). However, a fuel electrode of r-SOCs might be degraded due to redox cycles in switching operation modes. In our research group, we have fabricated redox-resistant anodes with Ni-Co alloy cermet (2). Here in this study, we apply such alloy-based cermet to the fuel electrode, and evaluate electrochemical performance, reverse cycling durability, and the effect of Co addition. Moreover, we compare the cell performance of Ni-Co alloy cermet with conventional Ni-ScSZ fuel electrode. Experimental In this study, scandia-stabilized zirconia (ScSZ, 10mol% Sc 2 O 3 -1mol% CeO 2 -89mol% ZrO 2 ) was used as the solid electrolyte. The powder prepared by mixing Ni-Co-based oxide powder prepared by ammonia co-precipitation with Ce 0.9 Gd 0.1 O 2 (GDC) in a weight ratio of 48.1:51.9, was used as the fuel electrode material. Ni-Co-GDC fuel electrode with x mol% of Co added to Ni, is denoted as Ni (100 – x) Co x -GDC fuel electrode. The fuel electrodes of x = 0, 5, 10, and 20 were fabricated. Two types of Ni-GDC cermet were prepared. One was fabricated by using NiO powder by ammonia co-precipitation, and the other was by using commercial NiO powder (Kanto Chemical, Japan). We prepared the Ni-Co alloy cermet by mixing powder and binder, preparing and printing electrode paste on the electrolyte plate, followed by heat treatment. (La 0.6 Sr 0.4 )(Co 0.2 Fe 0.8 )O 3 (LSCF) was used as the air electrode material. The electrochemical characteristics and r-SOC reversible cycle durability of the fuel electrodes were evaluated under the condition at an operating temperature of 800℃, while 100 ml/min of 50%-humidified hydrogen fuel was supplied to the fuel electrode, and 150 ml/min of air was supplied to the air electrode. Electrochemical characteristics were evaluated by electrochemical impedance measurements (1255WB, Solartron, UK), which separate ohmic and non-ohmic resistances. The durability in reverse r-SOC operation was evaluated by repeatedly varying current density within ± 0.2 A cm -2 at a current sweep rate of 1.56 mA cm -2 s -1 up to 1,000 cycles. The degradation was evaluated by averaging the percentage change in fuel electrode potential at ± 0.2 A cm -2 . Results and discussion Figure 1 shows the initial performance of the cells with each fuel electrode. Figure 2 shows the degradation of each fuel electrode within 1,000 cycles after the r-SOC reverse durability test. The initial performance of Ni-Co-GDC was superior to Ni-ScSZ, and it increased with decreasing Co content. Two types of Ni-GDC exhibited identical performance. Similarly, the r-SOC reverse durability of Ni-Co-GDC was superior to Ni-ScSZ, and it increased with decreasing Co content. Furthermore, two types of Ni-GDC exhibited almost the same durability. These results indicate that GDC contributes to the increased cell performance and durability rather than alloying or the feature of original NiO powder. It appears that Co is not essential for r-SOC fuel electrodes in terms of r-SOC durability. However, fuel electrode materials should be selected by comprehensively considering the performance and the durability at both SOFC and SOEC modes. As Ni-Co alloy shows higher redox cycle durability compared with Ni-GDC (3), Ni-Co alloy is still one of the promising materials for r-SOC fuel electrodes. Acknowledgements A part of this study was supported by “Research and Development Program for Promoting Innovative Clean Energy Technologies Through International Collaboration” of the New Energy and Industrial Technology Development Organization (NEDO). References N. Q. Minh and M. B. Mogensen, Electrochem. Soc. Interface , 22 , 55 (2013). Y. Ishibashi, S. Futamura, Y. Tachikawa, J. Matsuda, Y. Shiratori, S. Taniguchi, and K. Sasaki, J. Electrochem. Soc ., 167 , 124517 (2020). K. Matsumoto, Y. Tachikawa, J. Matsuda, S. Taniguchi, and K. Sasaki, ECS Trans ., 103 , 1549 (2021). Figure 1" @default.
• W4309813901 created "2022-11-29" @default.
• W4309813901 creator A5008400314 @default.
• W4309813901 creator A5023335012 @default.
• W4309813901 creator A5026363094 @default.
• W4309813901 creator A5027056886 @default.
• W4309813901 creator A5052147087 @default.
• W4309813901 date "2022-10-09" @default.
• W4309813901 modified "2023-09-24" @default.
• W4309813901 title "Ni-Alloy Fuel Electrodes for Reversible Solid Oxide Cells" @default.
• W4309813901 doi "https://doi.org/10.1149/ma2022-02471781mtgabs" @default.
• W4309813901 hasPublicationYear "2022" @default.
• W4309813901 type Work @default.
• W4309813901 citedByCount "0" @default.
• W4309813901 crossrefType "journal-article" @default.
• W4309813901 hasAuthorship W4309813901A5008400314 @default.
• W4309813901 hasAuthorship W4309813901A5023335012 @default.
• W4309813901 hasAuthorship W4309813901A5026363094 @default.
• W4309813901 hasAuthorship W4309813901A5027056886 @default.
• W4309813901 hasAuthorship W4309813901A5052147087 @default.
• W4309813901 hasConcept C127413603 @default.
• W4309813901 hasConcept C134132462 @default.
• W4309813901 hasConcept C134646822 @default.
• W4309813901 hasConcept C147789679 @default.
• W4309813901 hasConcept C161790260 @default.
• W4309813901 hasConcept C163127949 @default.
• W4309813901 hasConcept C17525397 @default.
• W4309813901 hasConcept C185592680 @default.
• W4309813901 hasConcept C191897082 @default.
• W4309813901 hasConcept C192562407 @default.
• W4309813901 hasConcept C2778456004 @default.
• W4309813901 hasConcept C2779851234 @default.
• W4309813901 hasConcept C2780026712 @default.
• W4309813901 hasConcept C42360764 @default.
• W4309813901 hasConcept C52859227 @default.
• W4309813901 hasConcept C55493867 @default.
• W4309813901 hasConcept C68801617 @default.
• W4309813901 hasConcept C74575197 @default.
• W4309813901 hasConcept C89395315 @default.
• W4309813901 hasConceptScore W4309813901C127413603 @default.
• W4309813901 hasConceptScore W4309813901C134132462 @default.
• W4309813901 hasConceptScore W4309813901C134646822 @default.
• W4309813901 hasConceptScore W4309813901C147789679 @default.
• W4309813901 hasConceptScore W4309813901C161790260 @default.
• W4309813901 hasConceptScore W4309813901C163127949 @default.
• W4309813901 hasConceptScore W4309813901C17525397 @default.
• W4309813901 hasConceptScore W4309813901C185592680 @default.
• W4309813901 hasConceptScore W4309813901C191897082 @default.
• W4309813901 hasConceptScore W4309813901C192562407 @default.
• W4309813901 hasConceptScore W4309813901C2778456004 @default.
• W4309813901 hasConceptScore W4309813901C2779851234 @default.
• W4309813901 hasConceptScore W4309813901C2780026712 @default.
• W4309813901 hasConceptScore W4309813901C42360764 @default.
• W4309813901 hasConceptScore W4309813901C52859227 @default.
• W4309813901 hasConceptScore W4309813901C55493867 @default.
• W4309813901 hasConceptScore W4309813901C68801617 @default.
• W4309813901 hasConceptScore W4309813901C74575197 @default.
• W4309813901 hasConceptScore W4309813901C89395315 @default.
• W4309813901 hasIssue "47" @default.
• W4309813901 hasLocation W43098139011 @default.
• W4309813901 hasOpenAccess W4309813901 @default.
• W4309813901 hasPrimaryLocation W43098139011 @default.
• W4309813901 hasRelatedWork W140446118 @default.
• W4309813901 hasRelatedWork W1977383301 @default.
• W4309813901 hasRelatedWork W1998047918 @default.
• W4309813901 hasRelatedWork W2005178236 @default.
• W4309813901 hasRelatedWork W2017305998 @default.
• W4309813901 hasRelatedWork W2043573686 @default.
• W4309813901 hasRelatedWork W2044357816 @default.
• W4309813901 hasRelatedWork W2070276615 @default.
• W4309813901 hasRelatedWork W2167604429 @default.
• W4309813901 hasRelatedWork W2272251446 @default.
• W4309813901 hasVolume "MA2022-02" @default.
• W4309813901 isParatext "false" @default.
• W4309813901 isRetracted "false" @default.
• W4309813901 workType "article" @default.