Engineering metallenes for boosting electrocatalytic biomass-oxidation-assisted hydrogen evolution reaction

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Metallenes offer unique electronic properties, high surface areas, and accessible atoms, making them ideal for catalysis.
• They show potential as bifunctional electrocatalysts for the hydrogen evolution reaction (HER) and biomass oxidation.

Purpose of the Study:

• To review recent progress in metallene-based catalysts for biomass-oxidation-assisted HER.
• To discuss composition and structural engineering strategies for enhanced catalytic performance.
• To explore structure-activity relationships and mechanisms in metallene catalysis.

Main Methods:

• Review of recent literature on metallene catalysts.
• Analysis of composition and structural modifications (alloying, doping, defects, functionalization, heterostructures).
• Discussion of catalytic mechanisms and structure-activity relationships.

Main Results:

• Metallenes effectively catalyze the biomass-oxidation-assisted HER.
• Various strategies like alloying, doping, and heterostructure engineering enhance catalytic activity.
• Understanding structure-activity relationships is crucial for optimizing performance.

Conclusions:

• Metallene-based catalysts are highly promising for green hydrogen production via biomass-oxidation-assisted HER.
• Further research into rational design and mechanistic understanding will drive future advancements.
• Metallenes present a viable pathway for sustainable energy solutions.