The catalytic action of adsorbed thiocyanate ions and thiourea in the electron transfer from glassy carbon to solid copper(I) selenide and copper(I) sulfide particles (CROSBI ID 77795)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lange, Britta ; Lovrić, Milivoj ; Scholz, Fritz
engleski
The catalytic action of adsorbed thiocyanate ions and thiourea in the electron transfer from glassy carbon to solid copper(I) selenide and copper(I) sulfide particles
Thiocyanate ions and thiourea molecules enhance the reversibility of the reduction of copper(I) selenide Cu2Se and copper(I) sulfide Cu2S which are immobilised on a glassy carbon electrode. This behaviour is explained by the adsorption of SCN- ions and thiourea on the surface of copper(I) chalcogenites and their function in an inner-sphere electron transfer reaction from the solid glassy carbon to the solid sample particles. Model calculations show that both electrocatalysts decrease the resistance for the electron transfer across the glassy carbon/Cu2Se (Cu2S) interface and simultaneously increase the rate constant of this process. This is the first example of an inner-sphere solid-to-solid electron transfer reaction.
thiocyanate; thiourea; glassy carbon electrode; copper selenide; copper sulfide; catalysis; electron transfer
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano