No abstract

The oxygen reduction (ORR) and hydrogen evolution (HER) reactions are the most important cathodic processes involved in fuel cell and water splitting, respectively.

Fuel cells stand out as one of the most promising alternatives for non-sustainable fossil-based economy. Efficient electrocatalysts for the Oxygen Reduction Reaction (ORR) are required for the mass application of fuel cells. Citrate-stabilized gold nanoparticles (AuNPs) are proposed as potential-dependent electrocatalysts for the ORR. AuNPs were synthesized by a green, reproducible and easy scale-up method. After exhaustive characterization, the electrocatalytic activity of the resulting AuNPs was investigated in alkaline media. Static and dynamic