Metal-Supported Solid Oxide Electrolysis Cell Test Standard Operating Procedure

Shen, Fengyu; Welander, Martha M.; Tucker, Michael C.

doi:10.3389/fenrg.2022.817981

Cited by 12 publications

(9 citation statements)

References 17 publications

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“…Electrochemical data in electrolysis mode was obtained at 700 °C for both as-preparation cells (Figure ) and post-operation cells (Figure S5). The reversible potential of the samples ranged 0.95–0.97 V, consistent with other SOEC studies using a 50% relative humidity H 2 flow. , LSCF-5Ru exhibited the best performance with a current density of 656 mA cm –2 at 1.3 V, significantly outperforming LSCF-Bare (440 mA cm –2 at 1.3 V). It is noted that a Ru overcoat with more than 5 ALD cycles resulted in decreased performance.…”

Section: Resultsmentioning

confidence: 99%

Ultralow Loading of Ru as a Bifunctional Catalyst for the Oxygen Electrode of Solid Oxide Cells

Kim

Garcia

et al. 2023

ACS Catal.

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The oxygen evolution reaction (OER) is a significant contributor to the cell overpotential in solid oxide electrolyzer cells (SOECs). Although noble metals such as Ru and Ir have been utilized as OER catalysts, their widespread application in SOECs is hindered by their high cost and limited availability. In this study, we present a highly effective approach to enhance air electrode performance and durability by depositing an ultrathin layer of metallic Ru, as thin as ∼7.5 Å, onto (La0.6Sr0.4)0.95Co0.2Fe0.8O3‑δ (LSCF) using plasma-enhanced atomic layer deposition (PEALD). Our study suggests that the emergence of a perovskite, SrRuO3, resulting from the reaction between PEALD-based Ru and surface-segregated Sr species, plays a crucial role in suppressing Sr segregation and maintaining favorable oxygen desorption kinetics, which ultimately improves the OER durability. Further, the PEALD Ru coating on LSCF also reduces the resistance to the oxygen reduction reaction (ORR), highlighting the bifunctional electrocatalytic activities for reversible fuel cells. When the LSCF electrode of a test cell is decorated with ∼7.5 Å of the Ru overcoat, a current density of 656 mA cm–2 at 1.3 V in electrolysis mode and a peak power density of 803 mW cm–2 in fuel cell mode are demonstrated at 700 °C, corresponding to an enhancement of 49.1 and 31.9%, respectively, compared to the pristine cell.

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Section: Resultsmentioning

confidence: 99%

Ultralow Loading of Ru as a Bifunctional Catalyst for the Oxygen Electrode of Solid Oxide Cells

Kim

Garcia

et al. 2023

ACS Catal.

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“…Cell testing followed a similar protocol to that published previously for electrolysis operation [37]. Platinum mesh was spot welded to each side of the cells to make electrical connections to Pt wires connected to the electrochemical testing interface.…”

Section: Cell Testingmentioning

confidence: 99%

Optimization of metal-supported solid oxide fuel cells with a focus on mass transport

Hu¹,

Lau²,

Song³

et al. 2023

Journal of Power Sources

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“…The I-V measurements were recorded with a VMP3 multichannel potentiostat and current booster (Biologic). Further details of the test protocol and test rig are available in our previous work (18).…”

Section: Ecs Transactions 111 (6) 2333-2340 (2023)mentioning

confidence: 99%

Metal-Supported Solid Oxide Cells for Energy Conversion, Electrolysis, and Chemical Synthesis

Tucker¹,

Hu²,

Zhu³

et al. 2023

ECS Trans.

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The LBNL metal-supported solid oxide cell architecture contains zirconia electrolyte and porous backbones co-sintered between porous stainless steel supports. Advantages of this design include low-cost structural materials, mechanical ruggedness, excellent tolerance to redox cycling, and extremely fast start-up capability. These features enable a wide variety of applications including electrolysis for intermittent renewables, distributed power generation, and synthesis of valuable chemicals. Highlights from efforts in these areas are presented.

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Metal-Supported Solid Oxide Electrolysis Cell Test Standard Operating Procedure

Abstract: This procedure describes the setup and testing protocol for metal-supported solid oxide electrolysis cell (MS-SOEC) button cell performance evaluation. It defines a standard testing protocol, describes materials selection, and identifies common pitfalls for testing MS-SOEC button cells.

Cited by 12 publications

References 17 publications

Ultralow Loading of Ru as a Bifunctional Catalyst for the Oxygen Electrode of Solid Oxide Cells

Ultralow Loading of Ru as a Bifunctional Catalyst for the Oxygen Electrode of Solid Oxide Cells

Optimization of metal-supported solid oxide fuel cells with a focus on mass transport

Metal-Supported Solid Oxide Cells for Energy Conversion, Electrolysis, and Chemical Synthesis

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