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Synthesis of Cu–Pd alloy thin films by co-electrodeposition by Morgan Allemand; Manuel. H. Martin; David Reyter; Lionel Roué; Daniel Guay; Carmen Andrei; Gianluigi A. Botton is a Engineering article available to read on EtoBox.
What is Synthesis of Cu–Pd alloy thin films by co-electrodeposition about?
This paper presents results on the synthesis of Cu–Pd alloy thin films on Ti substrates by co-electrodeposition of Pd and Cu from nitrate-base electrolytic baths. The deposition rates of Cu and Pd were determined by Electrochemical Quartz Crystal Microbalance as a function of the electrode potential and Cu+2 and Pd+2 concentrations. It is shown that electrodeposition of copper and palladium occurs simultaneously at −0.50V vs. SCE and that Cu–Pd thin films over the entire composition range were obtained by changing the composition of the solution. X-ray diffraction analyses indicated that these films have a nanocrystalline single-phase face-centered cubic structure and scanning electron microscopy analyses showed that potentiostatically deposited films are rough and porous, which is appropriate for electrocatalysis applications. In an attempt to get denser deposits as required for H2 purification applications, pulsed potential co-electrodeposition was performed and the effect of the deposition conditions on the roughness of the films was assessed by double layer capacitance measurements. It was shown that smooth Cu–Pd films (with R f value as low as 8, as opposed to more than 120 fo
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- Author
- Morgan Allemand; Manuel. H. Martin; David Reyter; Lionel Roué; Daniel Guay; Carmen Andrei; Gianluigi A. Botton
- Publisher
- Elsevier BV
- Published
- 2011
- Language
- EN
- Field
- Engineering (Physical Sciences)