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Published on: December 6, 2021
Precisely Assembly of Individual-Atom-to-Twinned Ruthenium Nanocrystal for Seawater Hydrogen Evolution
Yang Gao1, Yurui Xue2, Siao Chen1,3
1Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|July 14, 2026
Summary
Fluorine-substituted graphdiyne (FGDY) enables precise atomic manufacturing of ruthenium catalysts. This atomic control leads to highly efficient and stable hydrogen evolution reactions (HER) in simulated seawater.
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Atomic manufacturing offers precise control over materials for catalysis.
- Developing efficient catalysts for sustainable energy is crucial.
Purpose of the Study:
- To report fluorine-substituted graphdiyne (FGDY) as a platform for atomic assembly of ruthenium (Ru).
- To investigate the role of FGDY in controlling Ru dispersion and enhancing catalytic activity.
Main Methods:
- Utilized theoretical and experimental approaches to study Ru assembly on FGDY.
- Investigated the sp-sp² hybridized network and fluorine-induced charge polarization of FGDY.
- Evaluated hydrogen evolution reaction (HER) activity and stability in simulated seawater.
Main Results:
- FGDY precisely controlled the atomic-level dispersion of Ru, forming twinned quantum dots (TQDs).
- Enhanced Ru∼FGDY interactions suppressed aggregation and promoted active site exposure.
- Achieved excellent HER activity (84 mV at 1.0 A cm⁻²) and long-term stability (1200 h).
Conclusions:
- FGDY is a promising platform for designing advanced catalysts through atomic manufacturing.
- The developed catalyst demonstrates high efficiency and stability for hydrogen production in complex electrolytes.
- This work provides a scalable approach for nonprecious metal catalysts in sustainable hydrogen generation.
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