燃料电池和电解槽用烃类离子单体粘结剂的性能限制因素

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-04-18 DOI:10.1021/acsenergylett.5c00487

Jong-Ho Choi, Tanya Agarwal, Heemin Park, Jiyoon Jung, Ain Uddin, Su Min Ahn, Jeffrey Michael Klein, Albert S. Lee, Michelle Lehmann, Cy Fujimoto, Eun Joo Park, Tomonori Saito, Rod L. Borup, Yu Seung Kim

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引用次数: 0

摘要

燃料电池和电解槽向非氟化烃离聚体的转变是由对多氟烷基物质（如Nafion）的潜在限制所推动的。本研究通过半细胞实验和单细胞实验考察了碳氢化合物离聚体的主要局限性。半电池测试揭示了三个主要的性能障碍：不良吸附、电化学氧化和低透气性。竞争性硫酸盐吸附有助于抵消离聚体的吸附和氧化。这些发现与单电池性能数据一致，进一步揭示了可能由局部电极泛洪引起的额外氧质量传输限制。总之，这些发现为指导下一代燃料电池和电解槽的高性能、无氟碳氢化合物离聚体的开发提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers

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Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers

The move toward nonfluorinated hydrocarbon ionomers for fuel cells and electrolyzers is driven by potential restrictions on polyfluoroalkyl substances such as Nafion. This study examines the key limitations of hydrocarbon ionomers through half- and single-cell experiments with model hydrocarbon ionomers. Half-cell tests reveal three major performance barriers: undesirable adsorption, electrochemical oxidation, and low gas permeability. Competitive sulfate adsorption helps counteract ionomer adsorption and oxidation. These findings align with single-cell performance data, which further reveal additional oxygen mass transport limitations likely caused by localized electrode flooding. Together, these findings offer valuable insights to guide the development of high-performance, fluorine-free hydrocarbon ionomers for next-generation fuel cells and electrolyzers.

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.