异核分子
催化作用
电化学
密度泛函理论
析氧
材料科学
纳米技术
碳纤维
氧气
化学工程
对偶(语法数字)
化学
电极
物理化学
计算化学
分子
有机化学
复合材料
艺术
工程类
文学类
复合数
作者
Zhihao Pei,Xingwen Lu,Huabin Zhang,Yunxiang Li,Deyan Luan,Xiong-Wen Lou
标识
DOI:10.1002/anie.202207537
摘要
Abstract Single‐atom catalysts (SACs) are being pursued as economical electrocatalysts. However, their low active‐site loading, poor interactions, and unclear catalytic mechanism call for significant advances. Herein, atomically dispersed Ni/Co dual sites anchored on nitrogen‐doped carbon (a‐NiCo/NC) hollow prisms are rationally designed and synthesized. Benefiting from the atomically dispersed dual‐metal sites and their synergistic interactions, the obtained a‐NiCo/NC sample exhibits superior electrocatalytic activity and kinetics towards the oxygen evolution reaction. Moreover, density functional theory calculations indicate that the strong synergistic interactions from heteronuclear paired Ni/Co dual sites lead to the optimization of the electronic structure and the reduced reaction energy barrier. This work provides a promising strategy for the synthesis of high‐efficiency atomically dispersed dual‐site SACs in the field of electrochemical energy storage and conversion.
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