Huerta Arráez, Francisco, Morallon, Emilia, Quijada Tomás, César, Vázquez Picó, José Luis, Aldaz Riera, Antonio
Spectroelectrochemical study on CN− adsorbed at Pt(111) in sulphuric and perchloric media
HUERTA ARRÁEZ, Francisco, et al. "Spectroelectrochemical study on CN− adsorbed at Pt(111) in sulphuric and perchloric media". Electrochimica Acta. Vol. 44, Issues 6-7 (1 Nov. 1998). ISSN 0013-4686, pp. 943-948
URI: http://hdl.handle.net/10045/7819
DOI: 10.1016/S0013-4686(98)00197-2
ISSN: 0013-4686
Abstract: 
Cyclic voltammetry and in situ FTIR spectroscopy were combined to study irreversibly adsorbed cyanide adlayers in both perchloric and sulphuric media. Cyanide adlayers were formed on Pt(111) single-crystal electrodes and are stable in a wide range of potentials. A vibrational band at around 2100 cm−1 was assigned to the C–N stretching vibration of adsorbed cyanide, for which tuning rates close to 100 cm−1 V−1 below 0.5 V and 30 cm−1 V−1 above this potential were measured. These values are independent on the supporting electrolyte employed. A reorientation of the adsorbed cyanide was proposed to explain the changes observed in both tuning rate and integrated intensity at around 0.5 V.
Keywords:Cyanide, Platinum, Single crystals, FTIR spectroscopy, Cyclic voltammetry
Elsevier
info:eu-repo/semantics/article