Directing Ru-based acidic oxygen evolution catalysts toward a universal dual-site pathway
- 1State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Intelligent Design and Manufacturing for Hydrogen Energy Materials, Beijing University of Chemical Technology, Beijing, China
- 2Tsinghua Centre for Green Chemical Engineering Electrification, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, Department of Chemical Engineering, Tsinghua University, Beijing, China
Abstract
The oxide path mechanism offers vision possibility from kinetics for the anodic oxygen evolution reaction, yet its universal activation remains elusive due to the difficulty of constructing globally appropriate interatomic distances. Here, we address this challenge in the integrated-screened Y0.1Ir0.2Ru0.7Ox by precisely regulating the Ru-Ru1 bond length and constructing locally ordered yet long-range disordered structures that dissipate lattice strain, thereby enabling homogeneous modulation of interatomic distances across the framework. In-situ infrared spectroscopy together with online mass spectrometry confirms that the catalyst consistently follows a universal pathway. Building on these structural and mechanistic advantages, the nanostructured catalyst achieves a low cell voltage of 1.75 V@3 A cm-2 with operational stability ( > 2800 h @ 3 A cm-2, 0.0625 mV h-1 decay rate) in proton exchange membrane water electrolysis. This work establishes a generalizable framework for pervasive dual-site catalysis, providing a paradigm for next-generation water electrolysis anodes and beyond.
Related
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BibTeX
@article{hu2026directing,
title = {{Directing Ru-based acidic oxygen evolution catalysts toward a universal dual-site pathway}},
author = {Yingjie Hu and Yongde Long and Baoguang Mao and Zeqiang Yu and Linjie Zhao and Cheng Tang and Ruitian Kou and Chaoyang Sun and Chuangang Hu},
journal = {Nature Communications},
year = {2026},
month = sep,
doi = {10.1038/s41467-026-77517-w},
url = {https://doi.org/10.1038/s41467-026-77517-w},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Directing Ru-based acidic oxygen evolution catalysts toward a universal dual-site pathway
AU - Yingjie Hu
AU - Yongde Long
AU - Baoguang Mao
AU - Zeqiang Yu
AU - Linjie Zhao
AU - Cheng Tang
AU - Ruitian Kou
AU - Chaoyang Sun
AU - Chuangang Hu
PY - 2026
DA - 2026/09/05
JO - Nature Communications
DO - 10.1038/s41467-026-77517-w
UR - https://doi.org/10.1038/s41467-026-77517-w
AB - The oxide path mechanism offers vision possibility from kinetics for the anodic oxygen evolution reaction, yet its universal activation remains elusive due to the difficulty of constructing globally appropriate interatomic distances. Here, we address this challenge in the integrated-screened Y0.1Ir0.2Ru0.7Ox by precisely regulating the Ru-Ru1 bond length and constructing locally ordered yet long-range disordered structures that dissipate lattice strain, thereby enabling homogeneous modulation of interatomic distances across the framework. In-situ infrared spectroscopy together with online mass spectrometry confirms that the catalyst consistently follows a universal pathway. Building on these structural and mechanistic advantages, the nanostructured catalyst achieves a low cell voltage of 1.75 V@3 A cm-2 with operational stability ( > 2800 h @ 3 A cm-2, 0.0625 mV h-1 decay rate) in proton exchange membrane water electrolysis. This work establishes a generalizable framework for pervasive dual-site catalysis, providing a paradigm for next-generation water electrolysis anodes and beyond.
SN - 2041-1723
ER -