Multidimensional Engineering Strategies for Transition Metal Selenide Electrocatalysts in Water Electrolysis with...

Area of Science:

• Materials Science
• Electrochemistry
• Renewable Energy

Background:

• Hydrogen energy is a clean, renewable alternative to fossil fuels.
• Precious metal catalysts for water electrolysis are expensive and scarce.
• Transition metal selenides (TMSes) show promise as cost-effective electrocatalysts.

Purpose of the Study:

• To review multidimensional engineering strategies for optimizing TMS electrocatalysts.
• To analyze performance enhancement mechanisms for hydrogen and oxygen evolution reactions.
• To provide a framework for designing efficient and stable water electrolysis catalysts.

Main Methods:

• Review of conductive substrate engineering.
• Analysis of interfacial synergy effects.
• Discussion of crystal facet, morphology, doping, and single-atom catalyst strategies.

Main Results:

• Synergistic effects from multidimensional strategies overcome TMS limitations.
• Strategies address conductivity, active site passivation, and stability issues.
• A theoretical framework for catalyst design is established.

Conclusions:

• Multidimensional engineering is key to unlocking TMS potential for water electrolysis.
• Future research should combine in situ characterization with machine learning.
• This approach will reveal dynamic interfaces and structural evolution for advanced catalyst design.