@article{Zhou2025, 
author = {Shangyan Zhou and Fei Liu and Yunsong Ran and Jiamin Wang and Huarui Wang and Tongda Yang and Xiaodan Wang},
title = {Constructing double-tuned Ru nanoparticles and Co single atoms on MXene/TiO2 heterojunctions as for efficient oxygen evolution reaction electrocatalyst},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {12},
pages = {94907714},
keywords = {oxygen evolution reaction, Ru nanoparticle, Co single atom, MXene/TiO2},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907714},
doi = {10.26599/NR.2025.94907714},
abstract = {Water electrolysis to produce hydrogen has broad prospects due to its pollution-free feature, yet its electrolysis efficiency is limited by the slow kinetics of the anodic oxygen evolution reaction (OER). In this study, we develop a synergistic catalyst which integrates MXene/TiO2-supported Ru nanoparticles and oxygen-coordinated Co single atoms (RuCo-MXene/TiO2) for efficient OER. This double-tuned structure enables both high-density active sites and precise microenvironment control. Moreover, the interaction between metals during annealing process provides the generation of metallic-bonded Ru-Co pairs between Ru nanoparticles and Co single atoms, facilitating Ru nanoparticles-to-support charge transfer, resulting in optimized electronic properties of the catalyst. As expected, the as-synthesized RuCo-MXene/TiO2 catalyst at 10 mA·cm−2 current density exhibits 208 mV low overportential and a long-term stability of up to 500 h, which is superior to Ru-MXene/TiO2 and Co-MXene/TiO2. This work provides a promising strategy for designing efficient and stable electrocatalysts for renewable energy applications.}
}