Detection of Single Ag-Cu<sub>2</sub>O Particle Collision and Catalysis Using Electrochemistry
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This study explores nanoparticle interactions and their catalytic behavior at the single-particle level. Using electrochemical techniques, we investigate detecting single particle collisions and catalytic reactions. We study the electrocatalytic properties of an individual Ag-Cu2O porous micromotor with a gold ultramicroelectrode (Au-UME). Surface blockage and electrocatalytic amplification analyze the behavior of the microparticle. Studying the stochastic process of Ag-Cu2O particles, we observe the electrochemical collision of a single particle, detected through changes in current signal using potassium ferrocyanide K4Fe(CN)6. Hitting the porous Ag-Cu2O microparticle to the Au-UME working electrode blocks the oxidation processes of Fe(CN)64-, resulting in decreased current signals.