Peculiarities of the electrocatalytic properties of surface skeleton iridium electrodes

✍ Scribed by B. Podlovchenko; G. Shterev; R. Semkova; E. Kolyadko

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 583 KB
• Volume: 35
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(90)85058-u

✦ Synopsis

The pecuharltles of electrocatalytlc behavlour of surface skeleton (ss) Ir electrodes on the adsorption of hydrogen and oxygen, the formation of foreign metal adatoms and proceedmg of the processes of adsorptlon and electrooxldatlon of simple orgamc substances (CH,OH, H&O and HCOOH) have been studled Special attention IS pald to the formation of oxide layers and their effect on the electrocatalytlc processes It IS shown that on ss Ir electrodes an oxide layer gvmg a "reversible" wave at E, = 1 0 V 1s formed but this layer 1s In a conslderably smaller quantity than the one on smooth Ir It has been estabhshed that the areas not covered by an oxide layer on the electrodes studied have the same specific actlvlty with regard to the adsorption of foreign metal adatoms, orgamc particles and m the electrooxldatlon reactions of simple orgamc compound as the electrode surface had before the formatlon of the oxide layer