Abstract
Bromine (Br)-adatom (Br (ads)) was in situ fabricated onto polycrystalline gold (Au (poly)) electrode in Br −-containing alkaline media. The surface coverage of Br (ads) ( Γ Br) varied only in the submonolayer coverage within the investigated potential window under potentiodynamic condition because of the coadsorption of hydroxyl ion (OH −) in alkaline media. The in situ fabricated Br (ads)-submonolayer-coated Au (poly) electrode was successfully used for the electrochemical oxidation of hydrogen peroxide (H 2O 2). About five times higher oxidation current was achieved at the modified electrode as compared with the bare electrode. The enhancement of the electrode activity towards the electrochemical oxidation of H 2O 2 was explained based on the enhanced electrostatic attraction between the anionic HO 2 − molecules and Br (ads)-adlayer-induced positively polarized Au (poly) electrode surface.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
