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Updated: Jun 12, 2025
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Coordination engineering of single-atom ruthenium in 2D MoS2 for enhanced hydrogen evolution
Dong Guo1, Xiong-Xiong Xue2, Menggai Jiao3
1School of Materials Science and Engineering, Zhengzhou University Zhengzhou 450001 P. R. China.
Coordination engineering with non-metals enhances single-atom catalysts (SACs) for hydrogen evolution. The Ru-O-MoS2 catalyst shows superior performance and stability across all pH levels.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Single-atom catalysts (SACs) offer high efficiency but require optimization.
- MoS2-based catalysts are promising for hydrogen evolution reaction (HER).
- Coordination environment significantly impacts catalyst activity.
Purpose of the Study:
- To enhance catalytic activity of SACs via coordination engineering.
- To investigate the effect of non-metal coordination on Ru SACs anchored on MoS2.
- To explore the hydrogen evolution reaction (HER) performance of engineered SACs.
Main Methods:
- Synthesized 10 types of non-metal-coordinated Ru SACs (Ru-X-MoS2) using defect engineering.
- Introduced non-metallic atoms (N, O, F) into MoS2 basal plane.
- Anchored hetero-metallic Ru atoms onto the modified MoS2.
Main Results:
- Non-metal coordination (X) optimized the electronic structure of Ru atoms.
- Ru-X-MoS2 catalysts showed significantly improved HER performance across acidic, neutral, and alkaline electrolytes.
- Ru-O-MoS2 exhibited superior electrocatalytic behavior and stability, outperforming commercial Pt/C.
- Asymmetrically coordinated O2-Ru-S1 active sites in Ru-O-MoS2 were identified as key.
Conclusions:
- Single-atom coordination engineering is a powerful strategy for enhancing SAC performance.
- Engineered Ru-X-MoS2 catalysts demonstrate great potential for HER applications.
- The study highlights the importance of precise control over the coordination environment in SACs.
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