Is the catalytic current always proportional to the surface of electro-catalyst?

Key Points

• This research aims to investigate the relationship between catalytic current and the surface area of electro-catalysts.
• Theoretical analysis using numerical simulations
• Experimental validation through hydrazine oxidation on gold nanoparticles
• Demonstrated that the current is not always proportional to the surface area of the active material
• Identified conditions where catalytic current deviates from expected behavior