Performance and stability analysis of SOFC containing thin and dense gadolinium-doped ceria interlayer sintered at low temperature

Wang, Yige; Jia, Chengguo; Lyu, Zewei; Han, Min−Koo; Wu, Junwei; Sun, Zaihong; Iguchi, Fumitada; Yashiro, Keiji; Kawada, Tatsuya

doi:10.1016/j.jmat.2021.09.001

Cited by 26 publications

(9 citation statements)

References 64 publications

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“…[ 29 ] The inset in Figure 4b compares the Bode plots of both cells. In the high‐frequency range (10 3 –10 4 Hz), which is attributed to the charge transfer reaction at the fuel electrode [ 30 ] , there was no difference in resistance between the two cells owing to the identical fuel electrodes of both samples. The corresponding reaction in the middle‐frequency range (10 2 –10 3 Hz) is related to O 2– diffusion throughout the oxygen electrode and at the oxygen electrode/interlayer interface.…”

Section: Resultsmentioning

confidence: 99%

“…The corresponding reaction in the middle-frequency range (10 2 -10 3 Hz) is related to O 2diffusion throughout the oxygen electrode and at the oxygen electrode/interlayer interface. [30][31] In this frequency range, the d-SNDC cell showed somewhat reduced resistance, suggesting the facilitation of O 2diffusion at the interface of the oxygen electrode/SNDC interlayer. Resistance in the lowfrequency range (1-10 Hz) is associated with the oxygen electrode surface chemical exchange.…”

Section: Electrochemical Performance Of the Soc With Sndc Interlayermentioning

confidence: 99%

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Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers

Lee

2022

Adv Funct Materials

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Solid oxide electrochemical cells (SOCs) are promising energy conversion and storage systems owing to their high efficiency and low environmental impact. To lower operating temperatures, the state‐of‐the‐art SOCs with highly active cobaltite‐based oxygen electrodes essentially require doped‐ceria interlayers to avoid undesirable reactions with commercially available zirconia electrolytes. However, the inherent cation interdiffusion between ceria and zirconia materials at high temperatures (>1300 °C) has retarded the construction of highly dense and stoichiometric ceria/zirconia bilayers. This study reports the fabrication of a highly conductive, ultra‐thin (250 nm), and defect‐free Sm0.075Nd0.075Ce0.85O2‐δ (SNDC) interlayer via readily processable gelatin‐assisted deposition. The SOC with the gelatin‐derived SNDC interlayer achieved exceptionally high electrochemical performances both in the fuel cell (≈3.34 W cm‐2) and electrolysis mode (≈2.1 A cm‐2 at 1.3 V) at 750 °C—one of the best records for SOCs with similar configuration to date—along with excellent long‐term durability (1500 h). Mechanistic analysis reveals that the ultra‐thin and dense structure of the SNDC interlayer provides a faster route for oxygen‐ion conduction and more active sites for both oxygen reduction and oxygen evolution reactions at the oxygen electrode/electrolyte interface. The findings suggest that the thin and dense gelatin‐derived SNDC interlayer has great potential for use in high‐performance reversible SOCs.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Performance Of the Soc With Sndc Interlayermentioning

confidence: 99%

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers

Lee

2022

Adv Funct Materials

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“…These in-depth focused reviews on the physical characteristics of barium zirconate from experimental and theoretical studies will help to perform future research in this sector. − Hossain et al also experimentally studied SOFC electrolyte materials preparation in different sintering conditions , and conductivity measurements in various hydrogen-containing atmospheres − for the BaZr 0·9 Y 0·1 O 3‑α (BZY), BaZr 0·955 Y 0·03 Co 0·015 O 3‑α (BZYC), and Gd 2 O 3 sintered pellets. Last, but not least, very recent studies show that SOFC electrodes associated with multiple REOs have also shown promising characteristics, such as resistance to sulfur poisoning and stable degradation behavior at high temperatures, which are desirable in fuel cell applications. , Specific applications of REOs in SOFCs are given in Table .…”

Section: Applications and Prospects Of Rare Earth Oxidesmentioning

confidence: 99%

“…Last, but not least, very recent studies show that SOFC electrodes associated with multiple REOs have also shown promising characteristics, such as resistance to sulfur poisoning and stable degradation behavior at high temperatures, which are desirable in fuel cell applications. 114,115 Specific applications of REOs in SOFCs are given in Table 2.…”

Section: Applications and Prospects Of Rare Earth Oxidesmentioning

confidence: 99%

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

Hossain

Raihan

Akbar

et al. 2022

ACS Appl. Electron. Mater.

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To date, rare earth oxides (REOs) have proven to be key components in generating sustainable energy solutions, ensuring environmental safety and economic progress due to their diverse attributes. REOs' exceptional optical, thermodynamic, and chemical properties have made them indispensable in a variety of sophisticated technologies, including electric vehicle magnets, portable energy devices, fuel cell catalysts, radiation shielding, dosimetry, and many others. Therefore, the successful incorporation of rare earth elements (REEs) into host materials in controlled concentrations offers competitive advantages to fabricate portable energy devices, radiation sensors, and radiation shielding glasses, as well as to improve the performance of existing photovoltaic cells, which is of great interest to both researchers and industry. As the global demand for REEs grows rapidly, it is critical to comprehend the underlying physics as well as the wider consequences of REEs on sustainable energy and nuclear technologies, both in the near and long term. However, despite their relevance, a focused review on the applications, prospects, and challenges of REOs in photovoltaics, nuclear, and energy devices is still unavailable. To this effort, this review succinctly reports recent experimental studies on eight REOs (R 2 O 3 , R = Yb, Er, Sm, Eu, Y, Gd, Dy, and Ce) and their specific applications and industrial aspects. While several subdomains are reported, the applications of REOs in next-generation solar cells and photovoltaic devices for promoting zero-emission clean energy and rechargeable batteries for electric vehicles (EVs) are the most pioneering ones. Furthermore, REOs' chemical stability and compositional versatility allow them to be used in a variety of high-efficiency energy converters, including solid oxide fuel cells (SOFCs). From the perspective of thermodynamic and structural stability, the gamma and neutron absorptivity of REO-doped (such as Dy 3+ , Eu 3+ , Sm 3+ , Nd 3+ , etc.) glasses shows improved shielding performance in radiation domains. Aside from the applications, the prospects of REOs presented in this article are likely to encourage current and future scholars to pursue a wide range of important studies in the fields of energy and nuclear systems. This review also reports the key challenges (i.e., material degradation, phase transformation, magnetic entropy shift, etc.) associated with REOs in a standalone section. These challenges demand the immediate attention of scientists and engineers for efficient, costeffective, and environmentally sustainable solutions. At the end, future advancement pathways for REO applications are also suggested.

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“…Various methods are used for the deposition of barrier layers in SOFC technology [ 21 , 22 ]: ceramic methods, such as screen-printing [ 23 ] and tape calendering [ 24 , 25 ]; vacuum deposition technologies, e.g., magnetron sputtering [ 26 , 27 ], pulsed laser deposition [ 10 , 28 ], and physical vapor deposition (PVD) [ 29 ]; aerosol-spraying methods under atmospheric [ 30 ] and reduced pressures [ 31 ]; and colloidal and solution technologies—electrophoretic deposition [ 32 , 33 ], dip-coating and sol-gel [ 34 , 35 ], suspension centrifugation [ 36 ] etc. One of the flexible, easy-to-implement, and cheap technologies is electrophoretic deposition (EPD), which does not require high-tech equipment and allows the deposition of coatings at room temperature in ambient air with a sufficiently high deposition rate of ~1–10 μm per 1 min [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic Deposition and Characterization of the Doped BaCeO3 Barrier Layers on a Supporting Ce0.8Sm0.2O1.9 Solid-State Electrolyte

2022

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In this study, the technology of electrophoretic deposition (EPD) micrometer barrier layers based on a BaCe0.8Sm0.19Cu0.1O3 (BCSCuO) protonic conductor on dense carrying Ce0.8Sm0.2O1.9 (SDC) solid-state electrolyte substrates is developed. Methods for creating conductive sublayers on non-conductive SDC substrates under EPD conditions, such as the synthesis of a conductive polypyrrole (PPy) layer and deposition of a layer of finely dispersed platinum from a suspension of its powder in isopropanol, are proposed. The kinetics of disaggregation, disperse composition, electrokinetic potential, and the effect of adding iodine to the BCSCuO suspension on these parameters as factors determining the preparation of stable suspensions and successful EPD processes are explored. Button cells based on a carrying SDC electrolyte of 550 μm in thickness with BCSCuO layers (8–35 μm) on the anode, cathode, and anode/cathode side, and Pt electrodes are electrochemically tested. It was found that the effect of blocking the electronic current in the SDC substrate under OCV conditions was maximal for the cells with barrier layers deposited on the anode side. The technology developed in this study can be used to fabricate solid oxide fuel cells with doped CeO2 electrolyte membranes characterized by mixed ionic–electronic conductivity (MIEC) under reducing atmospheres.

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Performance and stability analysis of SOFC containing thin and dense gadolinium-doped ceria interlayer sintered at low temperature

Cited by 26 publications

References 64 publications

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

Electrophoretic Deposition and Characterization of the Doped BaCeO3 Barrier Layers on a Supporting Ce0.8Sm0.2O1.9 Solid-State Electrolyte

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Performance and stability analysis of SOFC containing thin and dense gadolinium-doped ceria interlayer sintered at low temperature

Cited by 26 publications

References 64 publications

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm0.075Nd0.075Ce0.85O2‐δ Interlayers

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm0.075Nd0.075Ce0.85O2‐δ Interlayers

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

Electrophoretic Deposition and Characterization of the Doped BaCeO3 Barrier Layers on a Supporting Ce0.8Sm0.2O1.9 Solid-State Electrolyte

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Product

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Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers

Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers