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<p>Solid oxide fuel cells (SOFCs) are efficient energy conversion devices with excellent fuel flexibility and minimum environmental impact. Recent progress has revealed that iron oxide composites are one of the essential materials in SOFCs technology due to their superior electrochemical performance, thermal stability, and cost-effectiveness. This review discusses the crucial roles of iron oxide composites in SOFCs. In addition, the development and classification of ferrite-based SOFCs materials are reviewed. Advances in symmetrical SOFCs based on ferrite oxides are categorized, and reversible SOFCs are discussed for dual functionality. Synergy between iron oxides is analyzed for the improvement in ionic conductivity, catalytic activity, and redox stability that improves the performance and durability of these materials. Challenges are discussed at the conclusion of the review, with future directions of research needed to optimize the iron oxide composite in order to bridge the gap of high performance in SOFCs with economically sustainable technology.</p>

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Advancements and Challenges in Iron Oxide and Ferrites Materials for Solid Oxide Fuel Cells: A Comprehensive Review

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Jyoti Duhan,
  • Bindu Dhuva,
  • Sangeeta Obrai

摘要

Solid oxide fuel cells (SOFCs) are efficient energy conversion devices with excellent fuel flexibility and minimum environmental impact. Recent progress has revealed that iron oxide composites are one of the essential materials in SOFCs technology due to their superior electrochemical performance, thermal stability, and cost-effectiveness. This review discusses the crucial roles of iron oxide composites in SOFCs. In addition, the development and classification of ferrite-based SOFCs materials are reviewed. Advances in symmetrical SOFCs based on ferrite oxides are categorized, and reversible SOFCs are discussed for dual functionality. Synergy between iron oxides is analyzed for the improvement in ionic conductivity, catalytic activity, and redox stability that improves the performance and durability of these materials. Challenges are discussed at the conclusion of the review, with future directions of research needed to optimize the iron oxide composite in order to bridge the gap of high performance in SOFCs with economically sustainable technology.