Rhodium electrochemical deposition on silver electrodes: an experimental and theoretical approach

E. N. SCHULZ; A. RUDERMAN; G. SOLDANO; E. SANTOS

Günzburg

Workshop; Workshop de DFG Research Unit FOR 1376: Theory meets Experiment; 2012

DEUTSCHE FORSCHUNGSGEMEINSCHAFT

Bimetallic catalysts, either supported on carbon substrates or mono / polycrystalline, has been studied since it was demonstrated that Pd monolayers on Au substrates (111) are an excellent catalyst for the hydrogen evolution reaction. In this regard, the formation of bimetallic systems by electrochemical techniques has several advantages over other methods due to the ease with which it can control the properties of the resulting nanoscale structures, by controlling the applied potential and / or circulated current. In particular, the Rh has been previously deposited on substrates such as carbon vitreous, polycrystalline Au and Au (100), and Au (111) among others. The present study focuses on the analysis of the early stages of the electroplating Ag Rh on substrates, and the influence of anions present in solution.