Electrodeposition of arrays of Ru, Pt, and PtRu Alloy 1D metallic nanostructures

Alexandre Ponrouch (1) , Sébastien Garbarino (1) , Stéphanie Pronovost (1) , Pierre-Louis Taberna (2) , Patrice Simon (2) , Daniel Guay (1)

1 EMT-INRS - Énergie Matériaux Télécommunications - INRS
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Arrays of Ru, Pt, and PtRu one dimensional 1D nanowires NWs and nanotubes NTs were prepared by electrodeposition through the porous structure of an anodic aluminum oxide AAO membrane. In each case, micrometer-long NW and NT were formed with an outer diameter of ca. 200 nm, close to the interior diameter of the porous AAO membrane. Arrays of NW and NT can be formed by varying the metallic salt concentration, the applied potential, and the conductivity of the electrolyte. The Ru and Pt deposition rates were measured in the various deposition conditions, using an electrochemical quartz crystal microbalance. The mechanisms responsible for the formation of Ru and Pt NW and NT are discussed based on the observed deposition rates and models found in the literature. Finally, it is shown that arrays of PtRu alloy NT and NW can be readily prepared and their compositions can be varied over the whole compositional range by changing the metallic salt concentration of the electrodeposition bath.

Mots clés: Electrodeposition; Arrays of Ru; Metallic nanostructures

Domaines: Matériaux

Alexandre Ponrouch, Sébastien Garbarino, Stéphanie Pronovost, Pierre-Louis Taberna, Patrice Simon, et al.. Electrodeposition of arrays of Ru, Pt, and PtRu Alloy 1D metallic nanostructures. Journal of The Electrochemical Society, 2010, 157 (3), pp.K59-K65. ⟨10.1149/1.3276500⟩. ⟨hal-03557573⟩