Emerging Material Paradigm: Strategic Optimization of Spinel Oxides as High-Performance Air Electrodes for Nanostructured Ceramic Fuel Cells.
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| Title: | Emerging Material Paradigm: Strategic Optimization of Spinel Oxides as High-Performance Air Electrodes for Nanostructured Ceramic Fuel Cells. |
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| Authors: | Hua, Maoyi1 (AUTHOR), Ge, Lin1 (AUTHOR) gelin2013@njtech.edu.cn |
| Source: | Nanomaterials (2079-4991). Feb2026, Vol. 16 Issue 3, p211. 30p. |
| Subjects: | Spinel group, Solid oxide fuel cells, Oxygen electrodes, Oxygen reduction, Doping agents (Chemistry), Thermal expansion, High-entropy alloys, Hydrogen as fuel |
| Abstract: | Hydrogen, renowned for its clean energy profile and high energy density, is a pivotal energy carrier for addressing global energy and environmental challenges. Solid oxide fuel cells (SOFCs) and proton ceramic fuel cells (PCFCs) have garnered significant interest due to their direct chemical-to-electrical-energy conversion, fuel flexibility, high efficiency, and environmental compatibility. However, conventional perovskite-based air electrodes suffer from sluggish oxygen reduction reaction (ORR) kinetics and insufficient structural stability at intermediate temperatures. Spinel oxides, distinguished by excellent chemical stability and thermal expansion compatibility, have emerged as promising alternatives; however, their broader application is constrained by their limited ionic conductivity and catalytic activity. This review systematically elucidates the crystal structure, intrinsic advantages, and advanced design strategies of spinel oxides. It particularly focuses on A- and B-site doping techniques for precise modulation of thermal expansion and enhancement of electrocatalytic performance, alongside high-entropy engineering approaches that bolster high-temperature stability. Finally, the review comprehensively discusses remaining challenges and future prospects for the implementation of spinel oxides in nanostructured ceramic fuel cells. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 191609619 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Emerging Material Paradigm: Strategic Optimization of Spinel Oxides as High-Performance Air Electrodes for Nanostructured Ceramic Fuel Cells. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hua%2C+Maoyi%22">Hua, Maoyi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ge%2C+Lin%22">Ge, Lin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gelin2013@njtech.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Feb2026, Vol. 16 Issue 3, p211. 30p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Spinel+group%22">Spinel group</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+electrodes%22">Oxygen electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+reduction%22">Oxygen reduction</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+expansion%22">Thermal expansion</searchLink><br /><searchLink fieldCode="DE" term="%22High-entropy+alloys%22">High-entropy alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+as+fuel%22">Hydrogen as fuel</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Hydrogen, renowned for its clean energy profile and high energy density, is a pivotal energy carrier for addressing global energy and environmental challenges. Solid oxide fuel cells (SOFCs) and proton ceramic fuel cells (PCFCs) have garnered significant interest due to their direct chemical-to-electrical-energy conversion, fuel flexibility, high efficiency, and environmental compatibility. However, conventional perovskite-based air electrodes suffer from sluggish oxygen reduction reaction (ORR) kinetics and insufficient structural stability at intermediate temperatures. Spinel oxides, distinguished by excellent chemical stability and thermal expansion compatibility, have emerged as promising alternatives; however, their broader application is constrained by their limited ionic conductivity and catalytic activity. This review systematically elucidates the crystal structure, intrinsic advantages, and advanced design strategies of spinel oxides. It particularly focuses on A- and B-site doping techniques for precise modulation of thermal expansion and enhancement of electrocatalytic performance, alongside high-entropy engineering approaches that bolster high-temperature stability. Finally, the review comprehensively discusses remaining challenges and future prospects for the implementation of spinel oxides in nanostructured ceramic fuel cells. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=191609619 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano16030211 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 30 StartPage: 211 Subjects: – SubjectFull: Spinel group Type: general – SubjectFull: Solid oxide fuel cells Type: general – SubjectFull: Oxygen electrodes Type: general – SubjectFull: Oxygen reduction Type: general – SubjectFull: Doping agents (Chemistry) Type: general – SubjectFull: Thermal expansion Type: general – SubjectFull: High-entropy alloys Type: general – SubjectFull: Hydrogen as fuel Type: general Titles: – TitleFull: Emerging Material Paradigm: Strategic Optimization of Spinel Oxides as High-Performance Air Electrodes for Nanostructured Ceramic Fuel Cells. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hua, Maoyi – PersonEntity: Name: NameFull: Ge, Lin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 16 – Type: issue Value: 3 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
| ResultId | 1 |
