Nanoparticle Adhesion and the Role of Nanobubbles in Single-Particle Collision Electrochemistry
Todd H. Lewis,
Bo Zhang
Abstract:Herein, we report how the collision and electrocatalytic behavior of single platinum nanoparticles (NPs) can be affected by the transient formation of H 2 nanobubbles generated from the hydrogen evolution reaction (HER). The use of a high concentration of acid (0.5 M HClO 4 ) promotes the nucleation of small nanobubbles, allowing us to observe a dramatic decrease in the collision frequency. Adding surfactant molecules and a defoaming agent to the acid solution causes the collision frequency to further decrease… Show more
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