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Single-Atom Sites on MXenes for Energy Conversion and Storage
Yanglansen Cui1, Zhenjiang Cao1, Yongzheng Zhang1
1School of Materials Science and Engineering Beihang University 100191 Beijing China.
Small Science
|April 11, 2025
Summary
Single-atom sites on MXenes (SASs-MXenes) offer superior atom efficiency for energy storage and conversion. This review details their synthesis and catalytic roles in reactions like hydrogen evolution and CO2 reduction.
Area of Science:
- Materials Science
- Catalysis
- Electrochemistry
Background:
- Single-atom sites on MXenes (SASs-MXenes) are highly sought after for energy applications due to their exceptional atom utilization efficiency, unique properties, and enhanced stability.
- MXenes' large surface area and numerous anchoring sites make them ideal supports for single atoms through covalent bonding.
Purpose of the Study:
- To summarize synthesis strategies for SASs-MXenes.
- To highlight the critical roles of SASs-MXenes in optimizing catalytic reactions for energy storage and conversion.
- To discuss future prospects and challenges in the field.
Main Methods:
- Review of synthesis approaches including cation vacancy capture, heterodopant coordination, and MAX phase inheritance.
- Analysis of SASs-MXene performance in various catalytic reactions.
Main Results:
- SASs-MXenes demonstrate significant potential in tuning reaction kinetics and thermodynamics.
- Applications span hydrogen evolution, nitrogen reduction, CO2 reduction, CO2 functionalization, polysulfide conversion, and battery redox reactions.
Conclusions:
- SASs-MXenes are promising for advanced energy technologies.
- Further research is needed to overcome challenges and unlock their full potential in catalysis and energy storage.
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