Induction Periods in Nitroarene Reduction on Metal Nanoparticles (Nanozymes): A Kinetic Competition Map among the Catalytic, Oxygen Reduction, and Hydrogen Evolution Reactions

Key Points

• This study aims to understand the induction periods in nitroarene reduction on metal nanoparticles and the interactions among various reactions.
• Examined the kinetic competition among nitroarene reduction, oxygen reduction, and hydrogen evolution reactions on metal nanoparticles.
• Utilized a predictive competition map to analyze the efficiency of reactions under different conditions.
• Developed a kinetic competition map that illustrates how each reaction influences the induction period.
• Demonstrated that sufficient surface availability of H* is crucial for optimal catalytic performance.