Electrochemical observation of single palladium nanoparticle collision using electrocatalytic current amplification

The collision of palladium nanoparticles was observed at the surface of an ultra-microelectrode. The electrocatalytic current amplification (ECA) of hydrazine was used for detection of each collision. In ECA method, the distribution histogram of Pd nanoparticles size and their concentration in the analytical solution were estimated.116