a. 中国科学技术大学纳米学院, 合肥 230026, 中国;
b. 中国科学院苏州纳米技术与纳米仿生研究所, 苏州 215123, 中国;
c. Department of Chemical Engineering, University of Engineering and Technology, New Campus, Lahore, 39021, Pakistan;
d. Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan;
e. 华东理工大学, 上海 200237, 中国;
f. 中国科学技术大学, 合肥230026, 中国;
g. 中国科学院福建物质结构研究所, 福州 350002, 中国.
# Equal Contribution by Shi Zhou and Muhammad Tariq
网络出版日期: 2026-02-13
Insertion of Noble Metal Free Cathodic Catalyst Layer with Fe-N-C Catalyst for Boosted Performance of PEMFC
a. Nano Science and Technology Institute, University of Science and Technology of China, Hefei 230026, China;
b. Division of Advanced Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China;
c. Department of Chemical Engineering, University of Engineering and Technology, New Campus, Lahore, 39021, Pakistan;
d. Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan;
e. State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road Shanghai 200237, China;
f. Anhui Laboratory of Advanced Photon Science and Technology, Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, China;
g. National Engineering Research Center for Optoelectronic Crystalline Materials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
# Equal Contribution by Shi Zhou and Muhammad Tariq
Online published: 2026-02-13
周石, Muhammad Tariq , Asif Nadeem Tabish, Muhammad Salman, 宁凡迪, Muhammad Rayyan Tayyab, 彭冉冉, 郝梦庚, 李文木, 周小春 . 制备含有Fe-N-C催化剂的无贵金属阴极催化剂层以提升PEMFC的性能[J]. 电化学, 0 : 0 . DOI: 10.61558/2993-074X.3607
Economical Fe-N-C catalysts are considered as promising alternatives to platinum group metal (PGM) catalysts for proton exchange membrane fuel cells (PEMFCs). Despite exhibiting robust activity on rotating disk electrodes (RDEs), their performance within membrane electrode assemblies (MEAs) often experiences limitations, such as decreased O2 diffusion, high H2O2 formation, low proton conduction, and a lower electron transfer number. In this study, key factors, including proton transport, electron conduction, and gas diffusion within air-breathing PEMFCs, have been investigated by adjusting cathode catalyst layer (CCL) compositions. From the experimental results, the peak power density is obtained when the loading of Fe-N-C catalyst is 1 mg∙cm⁻² and Nafion content is 0.15 mg∙cm⁻² within CCLs. The addition of polytetrafluoroethylene (PTFE) to enhance hydrophobicity was found to have a negative impact on PEMFC performance. Furthermore, the incorporation of diverse carbon nanotubes (CNTs) into CCLs resulted in a significant increase of over 30% in peak power density, attributed to enhancements in the gas diffusion and proton conductivity. The critical roles of gas transport and proton conductivity within Fe-N-C-based CCLs have been highlighted by this study. These findings contribute to the advancement of rational design principles for economical PEMFCs, offering valuable insights to drive the development of efficient and cost-effective technology in future.
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