An SERS study of silver electrodeposition from thiourea and cyanide containing solutions

A SERS investigation of the electrodeposition of Ag–Au alloys from free-cyanide solutions

“…The situation is similar for in situ FT-IR [17][18][19]. A smaller amount of spectroelectrochemical work has been carried out during the electrodeposition of silver [20][21][22][23][24][25][26] and gold [26][27][28].…”

Potential-dependent adsorption of uracil on a silver electrode in alkaline solutions

“…Surface-enhanced Raman spectroscopy (SERS) is a powerful technique to identify the chemical nature and the orientation of species at the metal/electrolyte interface [6]. The adsorption behaviors of ligands and additives from silver electroplating baths, such as 2-hydroxypyridine [9], CN À [10,11], S 2 O 2À 3 , SCN À [7,12], and thiourea (TU) [8,13] have been investigated by SERS extensively.…”

Study and preparation of silver electrodeposits at negative potentials

“…Simultaneously, it will be necessary to shift the proton reduction process too. The presence of thiourea in the bath accomplishes these requirements, because it adsorbs both on vitreous carbon and silver electrodes [16] shifting the prewave and hydrogen evolution process. Thiourea presence delayed the undesired hydrogen reaction to very negative potentials, so that the potential range useful to codeposit silver and cobalt with low hydrogen evolution is enlarged.…”

“…7(C)). Since thiourea species get adsorbed over silver surface [16], a parallel compositional analysis was made in order to establish the possible incorporation of thiourea in the deposit. The deposits were prepared at different potentials under different charge values, and then rinsed and immersed in sufficient water in order to remove any thiourea that might proceed from the bath.…”