Abstract
The Pt/C catalyst preparation by electrodeposition was done using a rotating disk electrode technique. The electrodeposition was carried out in a solution containing carbon black (Vulcan XC-72R), K2PtCl6 and 0.1M H2SO4 using a glassy carbon electrode for the potential applied. The convection of the technique and the applied potential permits the deposition at different sides of the carbon powder particle. The Pt deposition was analysed by TEM, nano XRF, and XRD. The TEM image showed Pt particles with sizes {greater than or equal to} 3 nm. The nano XRF and XRD confirm the presence of platinum nanoparticles showing the characteristic peak of this element. The use of the rotating disk-slurry technique was an effective method for the platinum electrodeposition because we can obtain well-dispersed platinum nanoparticles over the carbon powder support.