杂原子
化学
电催化剂
Atom(片上系统)
掺杂剂
兴奋剂
催化作用
配体(生物化学)
诱导效应
纳米技术
组合化学
结晶学
电化学
物理化学
有机化学
光电子学
电极
材料科学
戒指(化学)
受体
嵌入式系统
物理
生物化学
计算机科学
作者
Zhao Chang-xin,Xinyan Li,Jia‐Ning Liu,Juan Wang,Xin Wan,Xiyao Li,Cheng Tang,Changda Wang,Song Li,Jianglan Shui,Hong‐Jie Peng,Bo‐Quan Li,Qiang Zhang
摘要
Single-atom catalysts exhibit promising electrocatalytic activity, a trait that can be further enhanced through the introduction of heteroatom doping within the carbon skeleton. Nonetheless, the intricate relationship between the doping positions and activity remains incompletely elucidated. This contribution sheds light on an inductive effect of single-atom sites, showcasing that the activity of the oxygen reduction reaction (ORR) can be augmented by reducing the spatial gap between the doped heteroatom and the single-atom sites. Drawing inspiration from this inductive effect, we propose a synthesis strategy involving ligand modification aimed at precisely adjusting the distance between dopants and single-atom sites. This precise synthesis leads to optimized electrocatalytic activity for the ORR. The resultant electrocatalyst, characterized by Fe-N3P1 single-atom sites, demonstrates remarkable ORR activity, thus exhibiting great potential in zinc-air batteries and fuel cells.
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