密度泛函理论
催化作用
缩放比例
锂(药物)
动能
对称(几何)
线性比例尺
化学
序列(生物学)
化学物理
结合能
模式(计算机接口)
物理
拓扑(电路)
对称性破坏
氧气
材料科学
基质(水族馆)
纳米技术
动力学
标度律
钥匙(锁)
超氧化物
电子结构
数码产品
计算机科学
控制(管理)
几何学
正常模式
能量(信号处理)
电流密度
电子
立体化学
作者
Shuyun Guan,Wenhao Jia,Yinkun Gao,Mingyang Liu,Liguang Wang,Yongming Zhu,Xudong Li
标识
DOI:10.1002/anie.202523729
摘要
ABSTRACT Lithium–oxygen batteries (LOBs) offer high energy density through multi‐electron transfer, but their 2e − pathway generates unstable intermediates such as lithium superoxide (LiO 2 ), leading to complex reaction kinetics and poor reversibility. Herein, we propose an electronegativity‐mediated strategy to dynamically regulate LiO 2 binding on catalyst surfaces. By tuning the geometry and spacing of dual‐active sites (DAS), we reshape orbital interactions and coordination environments, enabling precise control over electron density and adsorption‐desorption microenvironments. This atomic‐scale regulation establishes a “bridged adsorption” mode that stabilizes key intermediates, optimizes Li‐O bond activation, and enhances the “adsorption‐activation‐dissociation” sequence of reactive species. Consequently, lithium–oxygen batteries exhibit high capacity and prolonged cycling stability. More broadly, we identify a universal DAS spacing descriptor that integrates symmetry breaking with electronic configuration, providing a general design principle to overcome linear scaling relationships (LSRs) and unlock intrinsic catalytic activity for oxygen electrocatalysis.
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