摘要：The slow oxygen mass transfer and limited active-site availability at triple-phase interfaces in the air electrode hinder the high-power-density output for Zn-air batteries (ZABs). The development of synergistic optimization strategies to address these issues is critical yet challenging. Herein, we construct NiCu alloy nanoparticles (NPs) on a mesoporous-rich N-doped carbon substrate (Ni0.67Cu0.33/meso-NC) as the electrocatalyst to enlarge the micro-triple-phase interface in the catalyst layer of the air electrode. Benefiting from the mesoporous structure, Ni0.67Cu0.33/meso-NC shows good ORR activity (E 1/2 = 0.883 V, j L = 5.83 mA cm-2), higher than its nonmesoporous counterpart and commercial Pt/C. Electrochemical analysis confirms the more accessible triple-phase interface active sites and accelerates the mass transfer for engineered mesoporosity in catalysts during the ORR process. In air electrodes of ZABs, a mesoporous architecture can serve as

关键字：mesoporous structure; mass transfer; triple-phaseinterface sites; oxygen reduction reaction; Zn-airbattery

ISSN号：1944-8244

卷、期、页：卷18期11：16552-16563

发表日期：2026-03-25

影响因子：8.200000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：ACS APPLIED MATERIALS ＆ INTERFACES

参与作者：Li, Yan,Li, Long,Yan, Yu

通讯作者：朱坤,李泽宇,纳耶

第一作者：杨克

论文类型：期刊论文

论文概要：Li, Yan,朱坤,李泽宇,纳耶,Li, Long,杨克,Yan, Yu，Synergistic Regulation of Triple-Phase Interfaces and Mass Transfer via Structure Engineering for High-Performance Oxygen Electrocatalysis，ACS APPLIED MATERIALS ＆ INTERFACES，2026，卷18期11：16552-16563

论文题目：Synergistic Regulation of Triple-Phase Interfaces and Mass Transfer via Structure Engineering for High-Performance Oxygen Electrocatalysis