Abstract
The inhibiting function of propargyl alcohol in nickel electrodeposition was studied by observing the cathodic polarization curves on nickel RDE in nickel sulfamate baths. The behavior of propargyl alcohol inhibiting the electrodeposition was analyzed based on the diffusion-adsorption-reduction model. The variations of the diffusion rate, the interfacial concentration and the coverage of propargyl alcohol with the electrode potential were simulated based on the reduction rate estimated from the model and the experimental results. The results of the simulation explained the experimental results well. Such a simulation gives useful information on the investigation of the additive behavior and the current distribution in the electrodeposition onto a micropatterned substrate.
