@article{Yang2026, 
author = {Dian Yang and Can Chen and Huanhuan Zhang and Junjie Gong and LiLi Zhang and Lin Gu and Shijie Shen and Wenwu Zhong},
title = {Synergistic design of embedded heterojunctions and hollow architecture for superior HER in acidic and alkaline electrolytes},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {6},
pages = {94908616},
keywords = {hydrogen evolution reaction (HER), ruthenium phosphide, heterojunction, hollow carbon spheres, electrocatalyst},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908616},
doi = {10.26599/NR.2026.94908616},
abstract = {Ruthenium phosphide electrocatalysts for the hydrogen evolution reaction (HER) still face challenges such as insufficient active site utilization and limited durability. This work addresses these challenges via a synergistic strategy that integrates heterojunction engineering with a hollow confinement structure, resulting in RuP2-Ni2P nanoparticles embedded within N,P-codoped hollow carbon spheres (RuP2-Ni2P/NPC). The interfacial coupling between RuP2 and Ni2P optimizes the electronic structure toward a near-ideal hydrogen adsorption energy, while the unique embedded architecture ensures abundant accessible active sites and exceptional structural robustness. As a result, the RuP2-Ni2P/NPC catalyst exhibits superior HER performance across a wide pH range, achieving ultralow overpotentials of 3 mV in 1 M KOH and 17.3 mV in 0.5 M H2SO4 at 10 mA·cm−2, ranking among the best of reported RuP2-based catalysts. It also demonstrates excellent long-term durability in both alkaline and acidic electrolytes. This work provides a feasible design strategy toward efficient and robust electrocatalysts for hydrogen production.}
}