🔋 SnO‐Based Mesh‐Island Architecture Stabilizes PtCoSn Alloy Catalysts for Durable Hydrogen Fuel Cells
📝 کاتالیزور آلیاژی PtCoSn با معماری مش-جزیره و SnO، فعالیت و پایداری واکنش کاهش اکسیژن را در پیل سوختی بهبود میبخشد؛ چگالی توان ۱.۴۶ وات بر سانتیمترمربع و افت ۱۴.۴٪ پس از ۳۰۰۰۰ چرخه.
📚 Journal: Small #Small
📅 Date: 2026-10-04
🔬 Research Article
💡 Novelty & Significance:
The novelty lies in a mesh-island confinement strategy using alternating atomic layer deposition to create ternary PtCoSn catalysts, with SnO-based mesh and support-confined islands stabilizing the alloy. This suppresses metal dissolution and nanoparticle migration, overcoming the activity-stability trade-off. Significance: achieves 1.46 W cm⁻² peak power and only 14.4% degradation after 30,000 cycles, offering a general route to durable fuel cell electrocatalysts.
🔗 10.1002/smll.76107
🏷 PtCoSn alloy · oxygen reduction reaction · fuel cells · mesh-island confinement · atomic layer deposition
Post #14821
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