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<p>Driven by global decarbonization targets and the accelerating transition toward sustainable energy systems, research on proton exchange membrane fuel cells (PEMFCs) has expanded significantly, with membrane materials emerging as a strategically critical component. This study presents a comprehensive bibliometric analysis of PEMFC membrane research published between 1991 and 2025, aiming to reveal the intellectual structure, thematic evolution, and developmental dynamics of the field from a sustainable renewable energy materials perspective. Publications were systematically retrieved from major academic databases, merged, and analyzed using science mapping techniques to evaluate publication trends, citation structures, leading countries, and emerging research themes. The findings indicate a pronounced increase in research output after 2017, closely aligned with sustainability-driven energy policies and global hydrogen economy strategies. In particular, fluorine-free polymer membranes, bio-based materials, high-temperature durability, and environmental impact considerations have emerged as dominant research themes in recent years. Geographical analysis demonstrates a strong Asia-centered concentration of research activity, with China holding a leading position in both productivity and citation impact. The primary novelty of this study lies in its systematic mapping of PEMFC membrane research through the lens of sustainable energy materials, rather than focusing solely on performance-oriented parameters. Unlike conventional reviews centered on electrochemical efficiency and durability, this analysis highlights the thematic transition toward environmentally compatible membrane design and renewable energy integration. By identifying structural patterns and emerging research priorities, this work provides a strategic knowledge framework to guide future developments in next-generation sustainable PEMFC membrane materials.</p>

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Sustainable Membrane Materials in PEM Fuel Cells: A Bibliometric Analysis of Research Trends, Thematic Evolution, and Future Directions

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Muhammed Asım Kesercioğlu,
  • Kubilay Han,
  • Yasin Akın

摘要

Driven by global decarbonization targets and the accelerating transition toward sustainable energy systems, research on proton exchange membrane fuel cells (PEMFCs) has expanded significantly, with membrane materials emerging as a strategically critical component. This study presents a comprehensive bibliometric analysis of PEMFC membrane research published between 1991 and 2025, aiming to reveal the intellectual structure, thematic evolution, and developmental dynamics of the field from a sustainable renewable energy materials perspective. Publications were systematically retrieved from major academic databases, merged, and analyzed using science mapping techniques to evaluate publication trends, citation structures, leading countries, and emerging research themes. The findings indicate a pronounced increase in research output after 2017, closely aligned with sustainability-driven energy policies and global hydrogen economy strategies. In particular, fluorine-free polymer membranes, bio-based materials, high-temperature durability, and environmental impact considerations have emerged as dominant research themes in recent years. Geographical analysis demonstrates a strong Asia-centered concentration of research activity, with China holding a leading position in both productivity and citation impact. The primary novelty of this study lies in its systematic mapping of PEMFC membrane research through the lens of sustainable energy materials, rather than focusing solely on performance-oriented parameters. Unlike conventional reviews centered on electrochemical efficiency and durability, this analysis highlights the thematic transition toward environmentally compatible membrane design and renewable energy integration. By identifying structural patterns and emerging research priorities, this work provides a strategic knowledge framework to guide future developments in next-generation sustainable PEMFC membrane materials.