Electrochemical preparation of nanometre sized noble metal particles into a polypyrrole functionalized by a molecular electrocatalyst precursor

M. Sigaud (1) , M. Li (1) , S. Chardon-Noblat (1) , F.J. Cadete Santos Aires (2) , Y. Soldo (3) , J.P. Simon (4) , A.J. Renouprez (2) , A. Deronzier (1)

1 LEOPR - Laboratoire d'électrochimie organique et de photochimie redox
2 IRC - Institut de recherches sur la catalyse
3 LEPMI - Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces
4 LTPCM - Laboratoire de thermodynamique et physico-chimie métallurgiques

Uniform spatial dispersion of a fine distribution of Pd, Ru and Rh nanoparticles has been achieved in a polypyrrole (ppyr) film functionalized by a cationic precursor of metal–metal bonded polymers [Ru(L)(CO)2]n(L = 2,2′-bipyridine (bpy) and derivatives) by using convenient electrochemical techniques. As evidenced by Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD) and X-ray Photoemission Spectroscopy (XPS), the metal particle sizes in the resulting composite material were found to be in the range from 1 to 6 nm, depending on the metal.

Domaines: Catalyse

M. Sigaud, M. Li, S. Chardon-Noblat, F.J. Cadete Santos Aires, Y. Soldo, et al.. Electrochemical preparation of nanometre sized noble metal particles into a polypyrrole functionalized by a molecular electrocatalyst precursor. Journal of Materials Chemistry, 2004, 14, pp.2606-2608. ⟨10.1039/b410534f⟩. ⟨hal-00007377⟩