Enhancing the performance of symmetrical solid oxide fuel cells with Sr2Fe1.5Mo0.5O6-δ electrodes via infiltration of Pr6O11 bifunctional catalyst

Zhu, Zongchao; Sun, Kang; Dong, Xu; Gu, Yu; Ni, Qing; Zheng, Yuan; Chen, Han; Ge, Lin; Huang, Xiaogu; Guo, Lucun

doi:10.1016/j.electacta.2021.139569

Cited by 22 publications

(10 citation statements)

References 52 publications

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“…As we all know, the polarization resistance and the oxygen partial pressures follow a linear slope as described in the literature. 37–39 Therefore, the HF processes for the two symmetric cells represent the O 2− transfer across the electrode/electrolyte interface, while the IF for PCaFW indicates the charge transfer process and the IF process for PSrFW shows the adsorption and dissociation processes for the surface oxygen. Finally, the higher values for the LF represent the adsorption and diffusion of oxygen on the cathode surface.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Wang

Zheng

et al. 2022

Sustainable Energy Fuels

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Section: Resultsmentioning

confidence: 99%

Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Wang

Zheng

et al. 2022

Sustainable Energy Fuels

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“…Among these materials, Sr 2 Fe 1.5 Mo 0.5 O 6-δ is regarded as one of the most promising candidates, thanks to its outstanding performance and successful application in SOEC systems. [86] Furthermore, apart from perovskite materials, some researchers have explored the use of non-perovskite or perovskite-like materials for oxygen electrodes, yielding encouraging results.…”

Section: Air Electrodementioning

confidence: 99%

“…In addition to conventional perovskite and layered perovskite materials, there is also significant scholarly interest in the application of double perovskite materials as oxygen electrodes in SOCE. Among these materials, Sr 2 Fe 1.5 Mo 0.5 O 6–δ is regarded as one of the most promising candidates, thanks to its outstanding performance and successful application in SOEC systems [86] . Furthermore, apart from perovskite materials, some researchers have explored the use of non‐perovskite or perovskite‐like materials for oxygen electrodes, yielding encouraging results.…”

Section: Research Progress Of Rsoc Electrode Materialsmentioning

confidence: 99%

Recent Development in Reversible Solid Oxide Fuel Cells: Theory, Integration and Prospective

Yang,

Lei,

Huang

et al. 2023

ChemElectroChem

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Reversible solid oxide fuel cell (RSOC) has gained widespread attention due to their potential for high efficiency in implementing multi‐energy distributed systems. When high power demand is required, RSOC can operate in the solid oxide fuel cell (SOFC) mode, directly converting the chemical energy from hydrogen or other renewable fuels into electricity. When excess electricity is available, RSOC can operate in the solid oxide electrolysis cell (SOEC) mode, producing fuels through the electrolysis of water or co‐electrolysis of water and carbon dioxide. The reversible operation of RSOC enables the direct conversion between chemical energy and electricity, offering a promising solution for clean and sustainable energy with low cost and high round‐trip efficiency. This paper introduces the research background and working principles of RSOC, provides a detailed overview of the current research status of electrolyte, fuel electrode, and oxygen electrode materials, discusses the optimization design of RSOC stacks and energy utilization strategies in the system. In addition, the future development directions of RSOC were also explored, which is of significant importance for the commercialization of RSOC.

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“…The symmetrical cell showed good redox reversibility and achieved an MPD of 802 mW cm –2 at 800 °C (Figure d) . In addition, infiltrating or mixing with oxygen ion conductors (such as SDC and GDC) into SFM5 skeleton can promote the processes of oxygen surface exchange and oxygen ion transport, thus enhancing the ORR activity. − For instance, after infiltrating SDC into the SFM electrode, the oxygen surface exchange coefficient increased from 1.4 × 10 –5 cm s –1 to 1 × 10 –3 cm s –1 at 750 °C …”

Section: B-site Ordered Double Perovskitesmentioning

confidence: 99%

Progress of Perovskites as Electrodes for Symmetrical Solid Oxide Fuel Cells

Zhang

et al. 2022

ACS Appl. Energy Mater.

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Symmetrical solid oxide fuel cells (SSOFCs), using the same material as both the anode and cathode, can reduce production costs and simplify the complex interface issues compared to conventional solid oxide fuel cells. The present challenge for SSOFCs is to explore suitable electrode materials that can maintain structural stability in both reducing and oxidizing atmospheres and exhibit good electrochemical activity toward both oxygen reduction and fuel oxidation reactions. Among the reported materials, the perovskites and perovskite-derived oxides are promising candidate electrodes for SSOFCs owing to their highly adjustable characteristics in structure and properties. In this review, we introduce the recently reported materials for SSOFC electrodes with their structural characteristics and property strengths/weaknesses. Attention is focused on the strategies for performance improvement and the mechanisms behind each solution. The correlation between the structural features, including defect formation, structure evolution, and interface modification, and the diverse properties, such as redox stability, electrical conductivity, and catalytic activity, are discussed. The performances of typical SSOFC electrode materials are summarized for comparison. Finally, the review is concluded with suggestions of possible directions for future research.

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Enhancing the performance of symmetrical solid oxide fuel cells with Sr2Fe1.5Mo0.5O6-δ electrodes via infiltration of Pr6O11 bifunctional catalyst

Cited by 22 publications

References 52 publications

Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Recent Development in Reversible Solid Oxide Fuel Cells: Theory, Integration and Prospective

Progress of Perovskites as Electrodes for Symmetrical Solid Oxide Fuel Cells

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Enhancing the performance of symmetrical solid oxide fuel cells with Sr2Fe1.5Mo0.5O6-δ electrodes via infiltration of Pr6O11 bifunctional catalyst

Cited by 22 publications

References 52 publications

Characterization of Pr0.5A0.5Fe0.9W0.1O3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Characterization of Pr0.5A0.5Fe0.9W0.1O3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Recent Development in Reversible Solid Oxide Fuel Cells: Theory, Integration and Prospective

Progress of Perovskites as Electrodes for Symmetrical Solid Oxide Fuel Cells

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Product

Resources

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Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells

Characterization of Pr_0.5A_0.5Fe_0.9W_0.1O_3−δ (A = Ca, Sr and Ba) as symmetric electrodes for solid oxide fuel cells