Journal
ELECTROCHIMICA ACTA
Volume 54, Issue 5, Pages 1570-1577Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.09.041
Keywords
Br-(ads)-submonolayer; Br-(ads)-submonolayer-coated Au (poly) electrode; Alkaline media; H2O2 oxidation reaction; Electrostatic attraction
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [19206079]
- New Energy and Industrial Technology Development Organization (NEDO)
- Grants-in-Aid for Scientific Research [19206079] Funding Source: KAKEN
Ask authors/readers for more resources
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) (Gamma(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 (14202). 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 H2O2 was explained based on the enhanced electrostatic attraction between the anionic HO2- molecules and Br-(ads)-adlayer-induced positively polarized Au (poly) electrode surface. (C) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available