Stainless steel-supported solid oxide fuel cell with La0.2Sr0.8Ti0.9Ni0.1O3−δ/yttria-stabilized zirconia composite anode

Dayaghi, Amir Masoud; Kim, Kun Joong; Kim, Sunwoong; Park, Juahn; Kim, Sun Jae; Park, Byung Hyun

doi:10.1016/j.jpowsour.2016.05.076

Cited by 39 publications

(26 citation statements)

References 46 publications

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“…On the other hand, progress in MS-SOFC peak power density is rather stagnated, remaining typically between 50 and 500 mW cm -2 in the temperature range of 650 °C to 850 °C [11,23,25,26,[30][31][32][33][34]. Substantially higher power is necessary for application in small passenger vehicles, in concert with tolerance to intermittent fuel flow and continuous load variation.…”

Section: Introductionmentioning

confidence: 99%

High performance metal-supported solid oxide fuel cells with infiltrated electrodes

Dogdibegovic

Wang

Lau

et al. 2019

Journal of Power Sources

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High power density is required to commercialize solid oxide fuel cells for vehicular applications. In this work, high performance of metal supported solid oxide fuel cells (MS-SOFCs) is achieved via catalyst composition, electrode structure, and processing optimization. The full cell configuration consists of a dense ceramic electrolyte and porous ceramic backbones (electrodes) sandwiched between porous stainless steel metal supports. The conventional YSZ electrolyte and backbones are replaced with more conductive and thinner 10Sc1CeSZ ceramics. MS-SOFCs are co-sintered in a single step and subsequently infiltrated with nanocatalysts. Five categories of cathode catalysts are screened in full cells, including: perovskites, nickelates, praseodymium oxide, binary layered composites, and ternary layered composites. Various anode compositions are also tested. The conventional LSM cathode catalyst is replaced with more active Pr6O11 and the Ni content of the SDC-Ni anode is increased. The resulting cells achieve a peak power of 1.56, 2.0, and 2.85 W cm-2 at 700, 750, and 800 °C, respectively, with 3%H2O/H2 as fuel and 2 cathode exposed to air. Multiple cells show reproducible performance (Pmax=1.50 ± 0.06 W cm-2) and OCV (1.10 ± 0.02 V). The performance is further increased with cathode exposed to pure oxygen (2.0 W cm-2 at 700 °C).

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Section: Introductionmentioning

confidence: 99%

High performance metal-supported solid oxide fuel cells with infiltrated electrodes

Dogdibegovic

Wang

Lau

et al. 2019

Journal of Power Sources

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“…Challenges for MS‐SOFCs include: oxidation of the metal support, especially at 800 °C and higher; the possibility of stainless steel exacerbating Cr poisoning of the cathode catalyst; fabrication‐ and material‐set restrictions arising from the requirement that stainless steel be sintered in reducing atmosphere; and only moderate performance and lifetime have been demonstrated to date. These issues, and various approaches to overcome the challenges, have been discussed in detail in the literature …”

Section: Introductionmentioning

confidence: 99%

Development of High Power Density Metal‐Supported Solid Oxide Fuel Cells

Tucker

2017

Energy Tech

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Symmetric metal-supported solid oxide fuel cells (MS-SOFC) are fabricated with infiltrated catalysts on both anode and cathode side. Various aspects of the infiltration process are optimized. Performance is found to be quite sensitive to precursor dilution, catalyst loading, and catalyst calcining temperature. For an optimized cell with LSM cathode and SDCN anode, peak power density of 0.44, 1.1, and 1.9 W cm-2 at 600°C, 700°C and 800°C, respectively is achieved. A fully symmetric MS-SOFC with SDCN on both the anode and cathode sides achieves moderate peak power density of 0.12, 0.37 and 0.76 W cm-2 at 600°C, 700°C, and 800°C, respectively. A novel solvent-based infiltration technique is also explored, and found to be more effective than capillary forces alone, but not as effective as vacuum-infiltration.

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“…Challenges for MS-SOFCs include: oxidation of the metal support, especially at 800°C and higher; fabrication and materials set restrictions arising from the requirement that stainless steel be sintered in reducing atmosphere; and, performance and lifetime are typically well below the best achievements of all-ceramic SOFCs. These issues, and various approaches to overcome the challenges, have been discussed in detail in the literature [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Durability of symmetric-structured metal-supported solid oxide fuel cells

Tucker

2017

Journal of Power Sources

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Symmetric-structure metal-supported solid oxide fuel cells (MS-SOFC) with YSZ electrolyte are fabricated with porous YSZ backbone electrodes, stainless steel supports, and infiltrated catalysts on both anode and cathode side. Durability towards aggressive thermal and redox cycling, and long-term operation is assessed. Many sealing material candidates are screened for compatibility with the cell materials and operating conditions, and a commercial sealing glass, GM31107, is selected. LSM/SDCN cells are then subjected to 200 very fast thermal cycles and 20 complete redox cycles, with minimal impact to cell performance. LSM/SDCN and SDCN/SDCN cells are operated for more than 1200 h at 700°C. The seal and cell hermeticity is maintained, and cell ohmic impedance does not change significantly during operation. Electrode polarization increases during operation, leading to significant degradation of the cell performance. In-operando EIS and post-mortem SEM/EDS analysis suggest that catalyst coarsening and cathode Cr deposition are the dominant degradation modes.

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Stainless steel-supported solid oxide fuel cell with La0.2Sr0.8Ti0.9Ni0.1O3−δ/yttria-stabilized zirconia composite anode

Cited by 39 publications

References 46 publications

High performance metal-supported solid oxide fuel cells with infiltrated electrodes

High performance metal-supported solid oxide fuel cells with infiltrated electrodes

Development of High Power Density Metal‐Supported Solid Oxide Fuel Cells

Durability of symmetric-structured metal-supported solid oxide fuel cells

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