Fabrication Of The Anode‐Supported Solid Oxide Fuel Cell With Composite Cathodes And The Performance Evaluation Upon Long‐Term Operation

Lin, Ting-Yun; Chang, Yang-Chuang; Lee, Maw-Chwain; Lee, Ruey‐Yi

doi:10.1002/9781119211501.ch9

Cited by 4 publications

(9 citation statements)

References 16 publications

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“…The gel was then swelled and subjected to a self-sustaining combustion. As for the SmBa 0.5 Sr 0.5 Co 2 O 5-δ (SBSC) powder fabrication, it was reported by our group in previous literature and Figure 1 illustrates the patented GNC reactor developed in INER which can effectively collect the reaction fine powders with stoichiometric ceramic powders (13). In this manuscript, we mainly describe the LSGM powder synthesis results with short comments on the application.…”

Section: Methodsmentioning

confidence: 97%

“…It can be concluded that as the calcined temperature increases, the surface area reduces and the average particle size increases as well. From our previous publication, the XRD patterns of the SBSC powders are shown in Figure 6 (13). The as-synthesized SBSC powders reveal poor crystallinity.…”

Section: Lsgm Powders Characterizationmentioning

confidence: 95%

“…Figure 6. XRD analyses of the SBSC powders calcined at various temperatures and the corresponding SEM microstructure(13).…”

mentioning

confidence: 99%

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Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

et al. 2017

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Solid oxide fuel cells (SOFCs) are recognized as environmentally friendly, highly efficient devices, and alternatives to conventional energy conversion systems. Typical material design used is the YSZ-based cell consisting of NiO-YSZ and LSM as anode and cathode, with a dense electrolyte of YSZ. When considering the use of hydrocarbon fuels, carbon deposition has been observed as major failure issue in electrodes. Also the homogeneity of the electrolyte is essential for the gas-tightness after sintering process. In this article, we propose an innovative chemical reactor with powder collection system and its application to glycine-nitrate combustion process to produce precision ceramic powder in nano scale; it not only generates precision ceramic powder of specific chemical composition on a mass-production scale, but also the system has the primary features of withstanding the instant hightemperature flare and pressure during powder formation reaction. Electrodes/electrolyte powders, SmBa 0.5 Sr 0.5 Co 2 O 5+δ (SBSC), Ce 0.6 Mn 0.3 Fe 0.1 O 2 (CMF), and La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 3-δ (LSGM), have been synthesized and characterized for the crystallinity, microstructure, conductivity, coefficient of thermal expansion properties were studied. The material application to form an SOFC has been executed and cell performances are investigated as well.

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Section: Methodsmentioning

confidence: 97%

Section: Lsgm Powders Characterizationmentioning

confidence: 95%

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Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

et al. 2017

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“…Synthesis/Investigation of SBSC Powders SmBa 0.5 Sr 0.5 Co 2 O 5-δ (SBSC) powder was synthesized by the glycine nitrate combustion process (10). Stoichiometric amounts of Sm(NO 3 ) 3 .6H 2 O (99.9%), Ba(NO 3 ) 2…”

Section: Methodsmentioning

confidence: 99%

Fabrication of SmBa_0.5Sr_0.5Co₂O_{5+_δ} Cathode Material and Its Application for Sr- and Mg-Doped LaGaO₃ Electrolyte-Supported Solid Oxide Fuel Cell

et al. 2015

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The layered samarium and strontium doped perovskite oxide SmBa 0.5 Sr 0.5 Co 2 O 5+δ (SBSC) was synthesized by glycine nitrate combustion process (GNC). The structure, microstructure, conductivity, and coefficient of thermal expansion were investigated. The crystallinity of SBSC powder showed pure perovskite phase above 1000°C according to the XRD and TGA results. With increased calcination temperature, the crystallinity improved and the powders grew larger and agglomeration occurred. The conductivity of SBSC powders increased with elevated temperature while the coefficient of thermal expansion was 22.6 × 10 -6 K -1 . SBSC powders were utilized as cathode materials in Srand Mg-doped LaGaO 3 (LSGM)-based electrolyte-supported solid oxide fuel cell for power performance test. The cell with structure of (NiFe + CMF) | LSGM | SBSC was operated from 700 to 800°C with humidified H 2 as a fuel and ambient air as oxidant. The maximum power densities were 550 and 170 mW cm -2 at 800 and 700°C, respectively. The experimental results indicate that SBSC is a promising cathode material for intermediate temperature solid oxide fuel cell (IT-SOFC).

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“…With temperature decreased, the design of cathode materials dominates for the fuel cell performance since the activation energy of the cathodic reaction is large (4). Perovskite oxides with cobalt-containing have been used as cathode material due to the higher ionic conductivity and catalytic activity, such as Sm 0.5 Sr 0.5 CoO 3−δ (SSC), La 0.5 Sr 0.5 Co 0.2 Fe 0.8 O 3−δ (LSCF), and Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3−δ (BSCF) (5,6). Layered perovskite with a moderate lanthanide ion radius (Sm 3+ ) may provide a suitable tradeoff of material properties between the catalytic activity and the value of thermal expansion coefficient (TEC) (7).…”

Section: Introductionmentioning

confidence: 99%

Performance and Durability Evaluation for Anode-Supported Solid Oxide Fuel Cell with Ce_0.8Sm_0.2O_2−δ_{- SmBa_0.5Sr_0.5Co₂O_5+δ Composite Cathodes}

et al. 2019

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We synthesize the SmBa0.5Sr0.5Co2O5+δ (SBSC) powders by glycine nitrate combustion method and then design the composite cathodes by mixing with Sm0.2Ce0.8O2-δ (SDC) for thermal expansion mismatch concern. The cell exhibits good adhesion between layers to improve cell performance. The cell with yittria-stabilized zirconia (YSZ) electrolyte via cathode design of SDC | SDC-SBSC, is operated from 600 to 800 °C. The power densities for operation potential 0.7 V shows the acceptable value of 498 mWcm-2 at 800 °C. To evaluate the durability, it is operated under fixed current density over thousand hours. A slight degradation in the activation region can be observed at the initial stage. The degradation rate is estimated at less than 0.5 %/khr after activation with current loading. The operational conditions with lower current loading and higher operation potential are the solution to prolong the cell life time. Further demonstration for IT-SOFC cell product shall be executed.

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Fabrication Of The Anode‐Supported Solid Oxide Fuel Cell With Composite Cathodes And The Performance Evaluation Upon Long‐Term Operation

Cited by 4 publications

References 16 publications

Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

Fabrication of SmBa_0.5Sr_0.5Co₂O_{5+_δ} Cathode Material and Its Application for Sr- and Mg-Doped LaGaO₃ Electrolyte-Supported Solid Oxide Fuel Cell

Performance and Durability Evaluation for Anode-Supported Solid Oxide Fuel Cell with Ce_0.8Sm_0.2O_2−δ_{- SmBa_0.5Sr_0.5Co₂O_5+δ Composite Cathodes}

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Fabrication Of The Anode‐Supported Solid Oxide Fuel Cell With Composite Cathodes And The Performance Evaluation Upon Long‐Term Operation

Cited by 4 publications

References 16 publications

Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

Applications of the Glycine Nitrate Combustion Method for Powder Synthesis on the LSGM-based Electrolyte-Supported Solid Oxide Fuel Cells

Fabrication of SmBa0.5Sr0.5Co2O5+δ Cathode Material and Its Application for Sr- and Mg-Doped LaGaO3 Electrolyte-Supported Solid Oxide Fuel Cell

Performance and Durability Evaluation for Anode-Supported Solid Oxide Fuel Cell with Ce0.8Sm0.2O2−δ- SmBa0.5Sr0.5Co2O5+δ Composite Cathodes

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Fabrication of SmBa_0.5Sr_0.5Co₂O_{5+_δ} Cathode Material and Its Application for Sr- and Mg-Doped LaGaO₃ Electrolyte-Supported Solid Oxide Fuel Cell

Performance and Durability Evaluation for Anode-Supported Solid Oxide Fuel Cell with Ce_0.8Sm_0.2O_2−δ_{- SmBa_0.5Sr_0.5Co₂O_5+δ Composite Cathodes}