Recent Advances on Two-Dimensional Nanomaterials Supported Single-Atom for Hydrogen Evolution Electrocatalysts.

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Water electrolysis is key for renewable energy storage via hydrogen production.
• Efficient and cost-effective catalysts are crucial for industrialization.
• Single-atom catalysts (SACs) offer high atomic utilization and excellent hydrogen evolution reaction (HER) performance.

Purpose of the Study:

• To comprehensively review the progress of 2D nanomaterial supports for SACs in enhancing HER.
• To discuss synthesis methods, characterization techniques, and support types.
• To explore structure-performance correlations for optimizing SA catalysts.

Main Methods:

• Literature review and synthesis of existing research on 2D nanomaterial supported SACs.
• Analysis of advanced characterization techniques for SA catalysts.
• Discussion of various 2D support materials and their properties.

Main Results:

• 2D nanomaterials provide unique platforms for SACs, enhancing HER activity through electronic interactions and synergistic effects.
• Diverse 2D supports (e.g., graphene, transition metal dichalcogenides) exhibit varied performance.
• Structure-property relationships are critical for maximizing catalyst efficiency.

Conclusions:

• 2D nanomaterial supported SACs are highly promising for efficient water electrolysis.
• Further research into rational design and understanding of interfacial effects is needed.
• This review provides insights into advancing HER catalysis using 2D nanomaterial supports.