Microwave-induced oxygen vacancy-rich surface boosts the cathode performance for proton-conducting solid oxide fuel cells

Wang, Lele; Zhang, Liling; Yu, Shoufu; Gu, Yueyuan; Bi, Lei

doi:10.1016/j.ceramint.2023.03.286

Cited by 6 publications

(2 citation statements)

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“…To increase the competence of the SFNO cathode in the community, greater performance improvement is needed. Given that V O has been shown to increase electrode ORR activity [41,42], the SFNO cathode performance can be further enhanced through defect engineering in conjunction with the introduction of V O . The microwave sintering technique can introduce V O into oxides [43,44].…”

Section: (A) Orr For H-sofcs Includes O 2 (G) → *Ooh → *O → *Oh → H 2...mentioning

confidence: 99%

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells

Dai,

Du,

Boulfrad

et al. 2024

Journal of Advanced Ceramics

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Nb-doped SrFeO 3−δ (SFO) is used as a cathode in proton-conducting solid oxide fuel cells (H-SOFCs). Firstprinciples calculations show that the SrFe 0.9 Nb 0.1 O 3−δ (SFNO) cathode has a lower energy barrier in the cathode reaction for H-SOFCs than the Nb-free SrFeO 3−δ cathode. Subsequent experimental studies show that Nb doping substantially enhances the performance of the SrFeO 3−δ cathode. Then, oxygen vacancies (V O ) were introduced into SFNO using the microwave sintering method, further improving the performance of the SFNO cathode. The mechanism behind the performance improvement owing to V O was revealed using first-principles calculations, with further optimization of the SFNO cathode achieved by developing a suitable wet chemical synthesis route to prepare nanosized SFNO materials. This method significantly reduces the grain size of SFNO compared with the conventional solid-state reaction method, although the solid-state reaction method is generally used for preparing Nb-containing oxides. As a result of defect engineering and synthesis approaches, the SFNO cathode achieved an attractive fuel cell performance, attaining an output of 1764 mW•cm −2 at 700 °C and operating for more than 200 h. The manipulation of Nb-doped SrFeO 3−δ can be seen as a "one stone, two birds" strategy, enhancing cathode performance while retaining good stability, thus providing an interesting approach for constructing high-performance cathodes for H-SOFCs.

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Section: (A) Orr For H-sofcs Includes O 2 (G) → *Ooh → *O → *Oh → H 2...mentioning

confidence: 99%

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells

Dai,

Du,

Boulfrad

et al. 2024

Journal of Advanced Ceramics

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“…Finally, the PPD of the microwave sintered cell was increased from 1312 to 1452 mW cm −2 at 700 °C. 110…”

Section: Typical Types Of Tcp Cathodesmentioning

confidence: 99%

Exploring the potential of triple conducting perovskite cathodes for high-performance solid oxide fuel cells: a comprehensive review

Lu,

Liu,

Zhang

et al. 2023

J. Mater. Chem. A

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Self-assembled Gd0.1Ce0.9O1.95-BaGd0.8La0.2Co2O6‒δ nanocomposite cathode for efficient protonic ceramic fuel cells

Liao,

Jia,

et al. 2024

Ceramics International

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Microwave-induced oxygen vacancy-rich surface boosts the cathode performance for proton-conducting solid oxide fuel cells

Cited by 6 publications

References 61 publications

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells

Exploring the potential of triple conducting perovskite cathodes for high-performance solid oxide fuel cells: a comprehensive review

Self-assembled Gd0.1Ce0.9O1.95-BaGd0.8La0.2Co2O6‒δ nanocomposite cathode for efficient protonic ceramic fuel cells

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Microwave-induced oxygen vacancy-rich surface boosts the cathode performance for proton-conducting solid oxide fuel cells

Cited by 6 publications

References 61 publications

Manipulating Nb-doped SrFeO 3− δ with excellent performance for proton-conducting solid oxide fuel cells

Manipulating Nb-doped SrFeO 3− δ with excellent performance for proton-conducting solid oxide fuel cells

Exploring the potential of triple conducting perovskite cathodes for high-performance solid oxide fuel cells: a comprehensive review

Self-assembled Gd0.1Ce0.9O1.95-BaGd0.8La0.2Co2O6‒δ nanocomposite cathode for efficient protonic ceramic fuel cells

Contact Info

Product

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About

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells

Manipulating Nb-doped SrFeO _{3−
δ} with excellent performance for proton-conducting solid oxide fuel cells