High power density solid oxide electrolyte fuel cells using Ru/Y2O3 stabilized zirconia cermet anodes
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Cited by (35)
Active and stable Ni/Cr<inf>2</inf>O<inf>3-Δ</inf> cathodes for high temperature CO<inf>2</inf> electrolysis
2019, Journal of Power SourcesCitation Excerpt :However, the Co/YSZ cathode would face the challenge of high cost [15]. Compared to Co/YSZ, the Ru/ZrO2 electrode shows much more advantages, such as high melting point, high activity, stable performance in SOEC operating temperature; however, Ru is much more expensive than Co element [16]. Active cermet Ni-Fe mixed with LSFM (Ni-Fe-LSFM) has been recently reported, which has demonstrated large current density (2.32 A cm−2) with coking resistance for CO2 electrolysis at 1.6 V and 1073 K [2].
Effects of zinc nitrate as a sintering aid on the electrochemical characteristics of Sr<inf>0.92</inf>Y<inf>0.08</inf>TiO<inf>3–δ</inf> and Sr<inf>0.92</inf>Y<inf>0.08</inf>Ti<inf>0.6</inf>Fe<inf>0.4</inf>O<inf>3–δ</inf> anodes
2018, Ceramics InternationalCitation Excerpt :Alternative anode materials for SOFCs must meet several requirements [10,11]: (i) electrocatalytic activity for hydrocarbon oxidation, (ii) suitable ionic and electronic conductivity under SOFC operating conditions, (iii) physical and chemical stability at high temperatures, (iv) compatibility with electrolytes, and (v) sulfur tolerance and carbon-coking resistance. Recently, many efforts have been devoted to developing Ni-free alternative anodes for the direct utilization of practical hydrocarbon fuels [12–18]. Although many metal-based anodes, including Cu, Co, W, Ru, and Pt, show good performance as alternative anodes, they are not appropriate for a practical utilization of commercial hydrocarbon fuels because the metal phase is easily sintered at high temperatures after long-term operation.
Characteristics of Sr <inf>0.92</inf> Y <inf>0.08</inf> Ti <inf>1-y</inf> Ni <inf>y</inf> O <inf>3-δ</inf> anode and Ni-infiltrated Sr <inf>0.92</inf> Y <inf>0.08</inf> TiO <inf>3-δ</inf> anode using CH <inf>4</inf> fuel in solid oxide fuel cells
2018, Applied Surface ScienceCitation Excerpt :Alternative anode materials for SOFCs must meet several requirements [1,12,13]; they must be (i) electro-catalytically active for oxidation of the hydrocarbon fuels, (ii) have good ionic and electronic conductivity under reducing conditions at high temperature, (iii) exhibit physical and chemical stability under the operating conditions of the SOFC, (iv) be chemically compatible with the electrolyte, and (v) be tolerant to carbon deposition and sulfur poisoning. One method of avoiding carbon deposition is by replacing Ni with other metals (Cu, Co, Pd, Ru, etc.,) that have poor catalytic activity for carbon formation [14–18,19]. Metal-based anodes, however, are still not appropriate for practical utilization with commercial hydrocarbon fuels, even though they have demonstrated excellent performance as alternative anodes.
Ru-based SOFC anodes: Preparation, performance, and durability
2017, International Journal of Hydrogen EnergyCitation Excerpt :Based on these fundamental technological considerations, the aim of this study is to consider the possibility of using an alternative Ru-based anode to replace Ni. Ruthenium-based anodes already have a significant precedent in the literature [16–30]. In the early stages of SOFC development, Ippommatsu and his colleagues [16] developed high-performance Ru-based anodes prepared via a thin film preparation technique.
Properties and development of Ni/YSZ as an anode material in solid oxide fuel cell: A review
2014, Renewable and Sustainable Energy ReviewsCitation Excerpt :Platinum spalled off in service, presumably due to water vapor evolution at the metal–oxide interface. Several metals such as Fe, Co, Ni [2], Pt [3] and Ru [4] have also been studied as anode materials. Among the transition metals, iron corrodes with the formation of an iron oxide when the partial pressures of oxidation products in the anode compartment of an operating cell exceed a critical value.