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Updated: May 9, 2025

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实现气流动性:电催化剂耐用性的挑战和策略,用于长期PEMFC运行

Subin Park¹, Eungjun Lee¹, Yoonsu Park¹

¹Center for Hydrogen and Fuel Cells, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea.

|May 2, 2025

概括

先进的催化剂和支对于重型车辆中耐用的质子交换膜燃料电池 (PEMFC) 至关重要. 合金和替代支的创新提高了性能和寿命.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
能源系统能源系统

背景情况:

质子交换膜燃料电池 (PEMFCs) 对于能源至关重要,特别是对于重型车辆 (HDVs).
重型车面临着独特的运营挑战,如频繁的启动和燃料短缺,影响PEMFC的耐用性.
目前的PEMFC采用受到耐用性和长期性能问题阻碍,这些问题对HV至关重要.

研究的目的:

审查PEMFC催化剂和支持的最新进展.
为重型应用突出提高PEMFC耐用性的策略.
为可持续和成本效益的PEMFCs提供对挑战和未来方向的见解.

主要方法:

专注于基于Pt的金属间催化剂,包括Pt-TM合金.
研究混合催化剂,将Pt与M-N-C (M = Fe,Co) 结合起来.
探索其他支持材料,如金属氧化物和石墨化碳.

主要成果:

基于Pt的金属间催化剂通过有序结构和强大的金属支相互作用来提高稳定性和活性.
混合催化剂可以提高性能并减少金负载.
替代支可以提高耐腐蚀性和电导率,而不是传统的碳支.

结论:

结构和材料创新是优化PEMFC催化剂和支持长期性能的关键.
解决耐用性挑战对于在重型车中广泛采用PEMFC至关重要.
对先进的催化剂和支持的进一步研究将推动具有成本效益和耐用性的PEMFC技术.

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