材料科学
阴极
钙钛矿(结构)
陶瓷
化学工程
氢
Atom(片上系统)
燃料电池
纳米技术
氢原子
催化作用
氧还原反应
电极
物理化学
电化学
冶金
化学
有机化学
计算机科学
嵌入式系统
工程类
烷基
作者
Sunce Zhao,Wenjia Ma,Beibei He,Yihan Ling,Yonglong Huang,Feng Hu,Zhu Shu,Ling Zhao
标识
DOI:10.1002/adma.202501387
摘要
Abstract Protonic ceramic fuel cells (PCFCs) offer a promising avenue for sustainable energy conversion, however, their commercial potential is hindered by sluggish proton‐involved oxygen reduction reaction (P‐ORR) kinetics and inadequate durability of cathode materials. Here, a novel single‐atom Ru anchor on BaCe 0.125 Fe 0.875 O 3−δ (BCF) perovskite, synthesized by a facile and scalable solid‐state approach, as a potential cathode for PCFCs is reported. Theoretical and experimental analyses demonstrate that the single‐atom Ru on BCF, characterized by a unique 4‐coordinate Ru‐O‐Fe configuration, not only induces reverse hydrogen spillover but also acts as an active site for P‐ORR. The application of the optimized 2Ru‐BCF (2 wt.% Ru) cathode in a single cell delivers an exceptional peak power density of 1.78 W cm −2 at 700 °C, along with excellent operational stability over 200 h. These findings provide new insights into single‐atom engineering, advancing the commercial viability of PCFCs.
科研通智能强力驱动
Strongly Powered by AbleSci AI