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High-Entropy Materials for Water Splitting: An Atomic Nanoengineering Approach to Sustainable Hydrogen Production
Yufei Zhao1, Jinhu Wu2, Xianjun Cao2,1
1School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia.
Advanced Materials (Deerfield Beach, Fla.)
|June 16, 2025
Summary
High-entropy materials (HEMs) are advanced catalysts for green hydrogen production via water electrolysis. Their unique elemental compositions and engineered structures significantly boost water-splitting efficiency for sustainable energy.
Area of Science:
- Materials Science
- Electrochemistry
- Sustainable Energy
Background:
- Water electrolysis is crucial for sustainable energy, but sluggish hydrogen and oxygen evolution reactions limit efficiency.
- High-entropy materials (HEMs), comprising at least five elements, show promise as electrocatalysts due to their unique properties.
Purpose of the Study:
- To review the development and structural evolution of HEMs for water splitting.
- To elucidate how atomic nanoengineering strategies enhance HEM catalytic performance.
- To examine the role of individual elements in HEMs for electrocatalysis.
Main Methods:
- Comprehensive literature review of HEM development and applications in water splitting.
- Analysis of atomic nanoengineering strategies (e.g., nanostructuring, defect engineering, functionalization).
- Examination of elemental contributions to HEM structure, stability, and activity.
Main Results:
- HEMs exhibit compositional versatility, structural robustness, and synergistic elemental interactions.
- Atomic nanoengineering significantly enhances HEM catalytic performance by optimizing structure and properties.
- Individual elements play critical roles as active sites, promoters, or stabilizers.
Conclusions:
- HEMs represent a promising class of electrocatalysts for efficient water splitting.
- Rational design of HEMs through nanoengineering and elemental selection is key to advancing water-splitting technology.
- Further research into HEMs is essential for future energy conversion technologies.
