Strong electronic metal-support interaction between Pt and stainless mesh for enhancing the hydrogen evolution...

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Electronic metal-support interaction (EMSI) is crucial for tuning electrocatalyst electronic structures.
• Developing efficient electrocatalysts for hydrogen production is vital for clean energy technologies.

Purpose of the Study:

• To engineer platinum (Pt) nanoparticles on stainless mesh (SM) using EMSI.
• To investigate the impact of EMSI on the hydrogen production activity of Pt/SM electrocatalysts.

Main Methods:

• Fabrication of Pt nanoparticles anchored on stainless mesh via EMSI engineering.
• Electrocatalytic performance testing for hydrogen evolution reaction.
• Theoretical calculations (e.g., Density Functional Theory) to elucidate interaction mechanisms.

Main Results:

• Pt nanoparticles anchored on SM via EMSI exhibit excellent hydrogen production activity.
• Theoretical calculations confirm strong EMSI between Pt and Fe atoms in SM.
• This strong interaction is identified as the origin of the enhanced catalytic performance.

Conclusions:

• EMSI engineering is an effective strategy to enhance electrocatalyst performance for hydrogen production.
• The Pt/SM system, facilitated by strong Pt-Fe EMSI, shows significant potential for electrochemical hydrogen evolution.