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Pt-based electrocatalysts were prepared on different carbon supports which are multiwall carbon nanotubes (MWCNTs), Vulcan XC 72R (VXR) and black pearl 2000 (BP2000) using a supercritical carbon dioxide (scCO 2 ) deposition technique. These catalysts were characterized by using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and cyclic voltammetry (CV). XRD...
We demonstrate that supercritical carbon dioxide deposition is a very effective technology for decorating multi-wall carbon nanotubes with platinum nanoparticles with an average size as small as 2nm and with a very narrow size distribution. Platinum loading can be controlled thermodynamically based on the adsorption isotherm of the platinum precursor between the supercritical carbon dioxide phase...
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