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在质子交换膜燃料电池中优化Fe/Co-NC催化剂的操作条件和稳定性评估

Hussein Gharibi^1,2, Mitra Teimourikhabazi³, Saeid Banazadeh³

¹Department of Chemistry, Faculty of Basic Science, Tarbiat Modares University (TMU), P.O. Box 14115-175, Tehran, Iran. gharibi@modares.ac.ir.

Scientific reports

|December 8, 2025

概括

双金属金属有机框架 (MOF) 催化剂在氧降解反应方面表现有前途. 这项研究优化了燃料电池中Fe/Co-NC 10h的条件,显示出出色的稳定性和性能.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

双金属金属有机框架 (MOF) 为氧降解反应 (ORR) 提供了增强的稳定性和电流密度.
燃料电池中MOF催化剂的实际稳定性和运行参数的影响需要进一步研究.

研究的目的:

在燃料电池系统中评估双金属MOF催化剂 (Fe/Co-NC 10小时) 的电化学活性和稳定性.
为了确定催化剂的性能和寿命的最佳操作条件.

主要方法:

使用三电极和单电池设置进行电化学测试.
循环电压测量 (CV) 和恒压测试以评估稳定性.
场发射扫描电子显微镜 (FESEM) 和能量散射X射线 (EDX) 分析用于术后表征.

主要成果:

对于Fe/Co-NC(10h) 阴极催化剂 (MEA2) 的最佳操作条件被确定为75°C,2 bar和100%的相对湿度.
催化剂表现出了显著的稳定性,在20小时以0.55V的电流下降仅为4.98%.
催化剂在2500个CV周期中保持了其性能,这表明其耐用性强.

结论:

双金属MOF催化剂,特别是Fe/Co-NC10h,在燃料电池中表现出高效和稳定的氧降解反应的巨大潜力.
优化的操作参数对于最大限度地提高催化剂性能和确保工作条件下的长期稳定性至关重要.

关键词:

金属有机框架的框架.运行条件运行条件氧降解反应是氧降解反应.性能优化优化性能优化质子交换膜燃料电池的燃料电池是什么

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