Structural and Interfacial Design of Atomically Thin Materials and Their Heterostructures for Advancing...

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Atomically thin materials (ATMs), with thicknesses below 5 nm, exhibit exceptional catalytic properties.
• Their unique electronic structures and high atomic utilization make them promising for electrocatalysis.
• Heterostructures formed from ATMs introduce novel interfacial phenomena, potentially overcoming performance limitations.

Purpose of the Study:

• To provide a comprehensive review of ATMs and their heterostructures in electrocatalysis.
• To discuss their application in oxygen reduction (ORR), oxygen evolution (OER), hydrogen evolution (HER), and CO2 reduction (CO2RR).
• To outline synthesis, characterization, design strategies, and future perspectives.

Main Methods:

• Review of existing literature on ATMs and their heterostructures.
• Analysis of synthesis and characterization methodologies.
• Systematic discussion of structural, electronic, and catalytic properties.

Main Results:

• ATMs and their heterostructures show remarkable activity in key electrochemical reactions.
• Various design strategies (vacancy, doping, defects, heterostructures) effectively modulate catalytic performance.
• Mechanistic insights reveal how these strategies influence adsorption and reaction pathways.

Conclusions:

• ATMs and heterostructures represent a significant advancement in electrocatalyst design.
• Future research should focus on thickness tuning, novel heterostructures, scalable synthesis, and AI-driven design.
• Integration into practical devices and advanced in situ characterization are crucial for future development.