𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Electrochemically induced surface modifications of Pt-Au alloy

✍ Scribed by E. Rach; J. Heitbaum

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
742 KB
Volume
32
Category
Article
ISSN
0013-4686

No coin nor oath required. For personal study only.

✦ Synopsis

Pt-Au alloy surfaces have been modified electrochemically, by thermal treatment and by sputtering with Ar+ ions. The resulting surface compositions were investigated by cyclic voltammetry, XPS and Auger-spectroscopy. On the basis of the different mean escape depths of electrons with different kinetic energies the attempt was made to get additional information about the composition of sub-surface layers. Formic acid oxidation was used as a model reaction for the investigation of the electrocatalytic activity of the different surfaces. The results are best explained by the third-body-mechanism. Peak E&V &JeV Iz in Au/A ,I in PtjA Pt 4f 71 1183 14.6 14.4 Au 4f 84

πŸ“œ SIMILAR VOLUMES

Electrochemically induced surface roughn
Electrochemically induced surface roughness on Au(100) studied by surface X-ray diffraction
✍ K.M. Robinson; I.K. Robinson; W.E. O'Grady πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 388 KB

## Abatrac-The surface of an electropolished Au(lO0) single crystal has been investigated by synchrotron X-ray diffraction. The crystal was examined after having swept the potential into the double layer of the oxide and hydrogen regions. The results show that there is very little change in the su

Electrochemical preparation of a Pt-Ru a
Electrochemical preparation of a Pt-Ru alloy
✍ M.A. Quiroz; I. Gonzalez; Y. Meas; E. Lamy-Pitara; J. Barbier πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 230 KB

The electrochemical reduction of Pt(IV) and Ru(III), in separated and mixed solutions, has been studied on a platinum electrode in 1 NHCI solution. The chronoamperometric and chronocoulometric results showed that the simultaneous reduction of Ru(II1) and Pt(IV) occurs, leading to alloy formation. Th

Fracture of Au-Pt alloys with modulated
Fracture of Au-Pt alloys with modulated structure
✍ R.W Carpenter; A Ahmadieh; E.R Parker πŸ“‚ Article πŸ“… 1966 πŸ› Elsevier Science βš– 653 KB

TABLE 2. Nitrogen retained in solution in chromium as a function of cooling rate Cooling times and approximste cooling rates from 1000 to 1OO'C Time (see) Rate ("C/set) Nitrogen (mm) 0