The National Science Foundation, Washington,D C, USA through the Yugoslav-American Fund, Contract No. 966.

Link to this page

The National Science Foundation, Washington,D C, USA through the Yugoslav-American Fund, Contract No. 966.

Authors

Publications

Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study

Štrbac, Svetlana; Anastasijević, Nikola A.; Adžić, Radoslav R.

(Elsevier, 1992)

TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Anastasijević, Nikola A.
AU  - Adžić, Radoslav R.
PY  - 1992
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4211
AB  - The kinetics of oxygen reduction have been studied on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in 0.1 M NaOH by a rotating disc-ring method. A very high activity of these surfaces for O2 reduction was demonstrated. The reaction involves a four-electron reduction without HO2- reaching the ring electrode in the presence of the AuOH-(1-λ2) layer on the Au (100) surface. At more negative potentials, as θAuOH → 0, a four-electron reduction takes place in an interactive pathway, followed by a two-electron series pathway and, at very large overpotentials, by a four-electron series pathway. The first electron transfer is the rate-determining step for all three faces. For vicinal faces, the region of the four-electron reduction is reduced due to the smaller region of AuOH formation. Evidence for the surface diffusion of HO2- was found from analysis of the disc-ring data. There were also indications for the splitting of the OO bond by AuOH in the region of the four-electron reduction. Maps of the reaction pathways have been constructed.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study
VL  - 323
IS  - 1-2
SP  - 179
EP  - 195
DO  - 10.1016/0022-0728(92)80010-2
ER  - 
@article{
author = "Štrbac, Svetlana and Anastasijević, Nikola A. and Adžić, Radoslav R.",
year = "1992",
abstract = "The kinetics of oxygen reduction have been studied on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in 0.1 M NaOH by a rotating disc-ring method. A very high activity of these surfaces for O2 reduction was demonstrated. The reaction involves a four-electron reduction without HO2- reaching the ring electrode in the presence of the AuOH-(1-λ2) layer on the Au (100) surface. At more negative potentials, as θAuOH → 0, a four-electron reduction takes place in an interactive pathway, followed by a two-electron series pathway and, at very large overpotentials, by a four-electron series pathway. The first electron transfer is the rate-determining step for all three faces. For vicinal faces, the region of the four-electron reduction is reduced due to the smaller region of AuOH formation. Evidence for the surface diffusion of HO2- was found from analysis of the disc-ring data. There were also indications for the splitting of the OO bond by AuOH in the region of the four-electron reduction. Maps of the reaction pathways have been constructed.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study",
volume = "323",
number = "1-2",
pages = "179-195",
doi = "10.1016/0022-0728(92)80010-2"
}
Štrbac, S., Anastasijević, N. A.,& Adžić, R. R.. (1992). Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study. in Journal of Electroanalytical Chemistry
Elsevier., 323(1-2), 179-195.
https://doi.org/10.1016/0022-0728(92)80010-2
Štrbac S, Anastasijević NA, Adžić RR. Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study. in Journal of Electroanalytical Chemistry. 1992;323(1-2):179-195.
doi:10.1016/0022-0728(92)80010-2 .
Štrbac, Svetlana, Anastasijević, Nikola A., Adžić, Radoslav R., "Oxygen reduction on Au (100) and vicinal Au (910) and Au (11, 1, 1) faces in alkaline solution. A rotating disc-ring study" in Journal of Electroanalytical Chemistry, 323, no. 1-2 (1992):179-195,
https://doi.org/10.1016/0022-0728(92)80010-2 . .
67
72