Induced electronic modification of Pt nanoparticles deposited onto graphitic domains of carbon materials by UV irradiation

J.W. Ma (1) , A. Habrioux (1) , M. Pisarek (2) , Adam Lewera (3) , N. Alonso-Vante (1)

1 SAMCat - Du site actif au matériau catalytique [E3 – IC2MP équipe 3]
2 Institute of Physical Chemistry
3 Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

Platinum nanoparticles deposited either by the photodeposition method or by the carbonyl chemical route are thought to be electronically modified onto carbon support. The deposition method is responsible for a controlled heterogeneous nucleation of platinum nanoparticles onto the substrate. By coupling results obtained from CO stripping experiments and X-ray photoelectron spectroscopy (XPS), there was a strong interaction between graphitic domains of carbonaceous supports and platinum nanoparticles. This phenomenon is at the origin of an increase of CO tolerance of the catalyst.

Domaines: Catalyse; Chimie organique; Autre

J.W. Ma, A. Habrioux, M. Pisarek, Adam Lewera, N. Alonso-Vante. Induced electronic modification of Pt nanoparticles deposited onto graphitic domains of carbon materials by UV irradiation. Electrochemistry Communications, 2013, 29, pp.12-16. ⟨10.1016/j.elecom.2012.12.028⟩. ⟨hal-00840098⟩