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Updated: Jun 14, 2026
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Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
Spatial imaging of water oxidation on single-particle catalysts
Wei Nie1,2,3,4, Hong-Jia Wang5, Yuying Gao1
1State Key Laboratory of Catalysis and Dalian Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
Nature Nanotechnology
|June 12, 2026
Summary
Researchers uncovered how dynamic structural changes in bismuth vanadate (BiVO4) particles, driven by hole accumulation, control water oxidation kinetics. This reveals new design principles for efficient solar fuel generation.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Water oxidation is a key step in artificial photosynthesis but is limited by slow kinetics.
- Understanding the dynamic interplay of charge transfer and active site evolution under operando conditions is crucial for improving efficiency.
Purpose of the Study:
- To spatially resolve the atomic-scale interplay between charge transfer and water oxidation intermediates on BiVO4 facets.
- To elucidate the dynamic structural adaptations governing water oxidation pathways and kinetics.
Main Methods:
- Operando electrochemical shell-isolated nanoparticle-enhanced Raman spectroscopy.
- Nanoscale electrochemical reaction imaging.
Main Results:
- Dynamic structural adaptation, mediated by multihole accumulation, governs water oxidation pathway bifurcation.
- Facet-dependent kinetics were observed, with the (010) facet becoming superior at critical hole densities.
- Third-order power-law kinetics were identified on the (010) facet due to dynamic hole accumulation.
Conclusions:
- Water oxidation catalysis is a dynamic process influenced by hole-mediated structural adaptability, not static sites.
- Design principles for tailoring photocharge-catalyst architectures with atomic precision for solar fuel generation were provided.
