  An organometallic powder (platinum (II) acetylacetonate) is decomposed in the
post-discharge of an atmospheric RF plasma torch to deposit Pt nanoparticles on
carbon black supports. The resulting nanohybrid materials are characterized by
FEG-SEM and XPS techniques to highlight their high content in Pt, their
oxidation degree, and the dispersion of the Pt nanoparticles on the substrate.
ICP-MS and electrochemical characterizations in a single fuel cell (cyclic
voltammetry, dynamic polarization curves) are also performed on electrodes
realized by treating the powder mixture overlaid on gas diffusion layers. The
comparison of the catalytic activity and the Pt loading with commercially
available electrodes shows the great potential of this simple innovative, fast,
and robust deposition method.
