Polycrystalline Pd electrode, Pd(poly), is modified by Ru nanoislands using spontaneous deposition method. Coverage of Pd(poly) electrode with the deposited Ru are approx. 20, 30 and 50% as estimated from phase atomic force microscopy images. The oxidation state of Pd substrate and the deposited Ru is determined by X-ray spectroscopy (XPS). Electrocatalytic activity of obtained Ru/Pd(poly) bimetallic electrodes is tested towards methanol oxidation in alkaline medium. Cyclic voltammetry and chronoamperometry experiments show the enhanced activity of Ru/Pd(poly) electrodes towards methanol electrooxidation with respect to bare Pd(poly). This is explained by the presence of Ru islands, which provided RuOH and Pd-RuOH sites, necessary for the oxidation of CO as the main intermediate during the oxidation of methanol at lower potentials. 30% Ru/Pd(poly) is the most active of all examined electrodes.
This is the peer-reviewed version of the article: S. Štrbac, A. Maksić, Z. Rakočević, Methanol oxidation on Ru/Pd(poly) in alkaline solution, Journal of Electroanalytical Chemistry, 2018, 823, 161-170, doi: https://doi.org/10.1016/j.jelechem.2018.06.011
TY - JOUR
AU - Štrbac, Svetlana
AU - Maksic, A.
AU - Rakočević, Zlatko Lj.
PY - 2018
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4275
AB - Polycrystalline Pd electrode, Pd(poly), is modified by Ru nanoislands using spontaneous deposition method. Coverage of Pd(poly) electrode with the deposited Ru are approx. 20, 30 and 50% as estimated from phase atomic force microscopy images. The oxidation state of Pd substrate and the deposited Ru is determined by X-ray spectroscopy (XPS). Electrocatalytic activity of obtained Ru/Pd(poly) bimetallic electrodes is tested towards methanol oxidation in alkaline medium. Cyclic voltammetry and chronoamperometry experiments show the enhanced activity of Ru/Pd(poly) electrodes towards methanol electrooxidation with respect to bare Pd(poly). This is explained by the presence of Ru islands, which provided RuOH and Pd-RuOH sites, necessary for the oxidation of CO as the main intermediate during the oxidation of methanol at lower potentials. 30% Ru/Pd(poly) is the most active of all examined electrodes.
PB - Elsevier
T2 - Journal of Electroanalytical Chemistry
T1 - Methanol oxidation on Ru/Pd(poly) in alkaline solution
VL - 823
SP - 161
EP - 170
DO - 10.1016/j.jelechem.2018.06.011
UR - Conv_3986
ER -
@article{
author = "Štrbac, Svetlana and Maksic, A. and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Polycrystalline Pd electrode, Pd(poly), is modified by Ru nanoislands using spontaneous deposition method. Coverage of Pd(poly) electrode with the deposited Ru are approx. 20, 30 and 50% as estimated from phase atomic force microscopy images. The oxidation state of Pd substrate and the deposited Ru is determined by X-ray spectroscopy (XPS). Electrocatalytic activity of obtained Ru/Pd(poly) bimetallic electrodes is tested towards methanol oxidation in alkaline medium. Cyclic voltammetry and chronoamperometry experiments show the enhanced activity of Ru/Pd(poly) electrodes towards methanol electrooxidation with respect to bare Pd(poly). This is explained by the presence of Ru islands, which provided RuOH and Pd-RuOH sites, necessary for the oxidation of CO as the main intermediate during the oxidation of methanol at lower potentials. 30% Ru/Pd(poly) is the most active of all examined electrodes.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Methanol oxidation on Ru/Pd(poly) in alkaline solution",
volume = "823",
pages = "161-170",
doi = "10.1016/j.jelechem.2018.06.011",
url = "Conv_3986"
}
Štrbac, S., Maksic, A.,& Rakočević, Z. Lj.. (2018). Methanol oxidation on Ru/Pd(poly) in alkaline solution. in Journal of Electroanalytical Chemistry
Elsevier., 823, 161-170.
https://doi.org/10.1016/j.jelechem.2018.06.011
Conv_3986
Štrbac S, Maksic A, Rakočević ZL. Methanol oxidation on Ru/Pd(poly) in alkaline solution. in Journal of Electroanalytical Chemistry. 2018;823:161-170.
doi:10.1016/j.jelechem.2018.06.011
Conv_3986 .
Štrbac, Svetlana, Maksic, A., Rakočević, Zlatko Lj., "Methanol oxidation on Ru/Pd(poly) in alkaline solution" in Journal of Electroanalytical Chemistry, 823 (2018):161-170,
https://doi.org/10.1016/j.jelechem.2018.06.011 .,
Conv_3986 .
