Methanol oxidation on Ru/Pd(poly) in alkaline solution
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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.
Keywords:
Ruthenium / Palladium / Spontaneous deposition / Methanol oxidationSource:
Journal of Electroanalytical Chemistry, 2018, 823, 161-170Publisher:
- Elsevier
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Note:
- 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
- The published version: https://cer.ihtm.bg.ac.rs/handle/123456789/2460
DOI: 10.1016/j.jelechem.2018.06.011
ISSN: 1572-6657
WoS: 000443664700021
Scopus: 2-s2.0-85048082915
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IHTMTY - 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 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" }
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
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 .
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 . .