@article{Shi2026, 
author = {Zhixian Shi and Yue Du and Zhiyi Zhong and Song Pan and Xiaonan Xu and Ankang Shi and Jijian Zhang and Dongsheng Cao and Haiyan Hu and Dongbin Xiong and Yisi Liu and Jianqing Zhou and Lina Zhou and Yao Xiao},
title = {Heterointerface-engineered electron-bridge in hollow carbon nanotube-anchored Fe2P/FeCoP electrocatalyst for highly stable Zn–air batteries},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {1},
pages = {94908015},
keywords = {oxygen reduction reaction, oxygen evolution reaction, phase reconstruction, hollow carbon nanotube, electron-bridge, rechargeable zinc–air battery},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908015},
doi = {10.26599/NR.2025.94908015},
abstract = {Transition metal phosphides (TMPs) hold promise as effective bifunctional oxygen electrocatalysts for rechargeable Zn–air batteries (RZABs), yet their practical application is hindered by inadequate durability and sluggish kinetics. Herein, we design a heterophosphate composite comprising Fe2P-FeCoP heterojunctions anchored on one-dimensional (1D) hollow N, P-doped carbon nanotubes (Fe2P-FeCoP@HNPC) through controlled metal modulation of aniline-phytate nanorods. Critically, the interfacial electronic coupling between Fe2P and FeCoP induces a cross-interfacial electron-bridge network, which drives charge redistribution to accelerate interfacial electron transfer and refines the d band adsorption energetics for optimized oxygen intermediate binding. Coupled with its hollow architecture, Fe2P-FeCoP@HNPC enables synergistic mass/charge transfer enhancement. The synergistic electronic-structural effects endow Fe2P-FeCoP@HNPC with exceptional bifunctional activity, achieving a high oxygen reduction reaction (ORR) half-wave potential (0.83 V vs. reversible hydrogen electrode (RHE)) and low oxygen evolution reaction (OER) overpotential (1.53 V @10 mA·cm−2), attributed to the stabilized electron-bridge effect and hierarchical mass/charge transfer dynamics. Fe2P-FeCoP@HNPC assembled RZAB achieves a peak power density of 145 mW·cm−2 and ultralong cycling stability (> 1240 h) with negligible decay. This work demonstrates a universal strategy to harmonize electronic and structural engineering in TMPs for high-performance electrochemical energy systems.}
}