Methanol oxidation on Pd/Pt(poly) in alkaline solution
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Maksić, AleksandarRakočević, Zlatko Lj.
Smiljanić, Milutin Lj.
Nenadović, Miloš
Štrbac, Svetlana
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Bimetallic electrodes prepared by Pd nanoislands spontaneously deposited on polycrystalline platinum, Pt(poly), at submonolayer coverage were explored for methanol oxidation in alkaline media. Characterization of obtained Pd/Pt(poly) nanostructures was performed ex situ by AFM imaging, spectroscopic ellipsometry and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent methanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Platinum surface with 35% Pd coverage exhibited the highest catalytic activity for methanol oxidation in alkaline media, exceeding those of bare Pt and Pd. Both synergistic and electronic effects are responsible for such enhanced catalysis. The origin of the synergistic effect and possible reaction pathways for methanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and formaldehyde, as the most probable reaction intermedi...ates. (C) 2014 Elsevier B.V. All rights reserved.
Keywords:
Platinum / Palladium / AFM / CO oxidation / Formaldehyde oxidation / Methanol oxidationSource:
Journal of Power Sources, 2015, 273, 724-734Funding / projects:
- Functional, Functionalized and Advanced Nanomaterials (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.1016/j.jpowsour.2014.09.138
ISSN: 0378-7753; 1873-2755
WoS: 000345725700092
Scopus: 2-s2.0-84908102401
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VinčaTY - JOUR AU - Maksić, Aleksandar AU - Rakočević, Zlatko Lj. AU - Smiljanić, Milutin Lj. AU - Nenadović, Miloš AU - Štrbac, Svetlana PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/244 AB - Bimetallic electrodes prepared by Pd nanoislands spontaneously deposited on polycrystalline platinum, Pt(poly), at submonolayer coverage were explored for methanol oxidation in alkaline media. Characterization of obtained Pd/Pt(poly) nanostructures was performed ex situ by AFM imaging, spectroscopic ellipsometry and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent methanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Platinum surface with 35% Pd coverage exhibited the highest catalytic activity for methanol oxidation in alkaline media, exceeding those of bare Pt and Pd. Both synergistic and electronic effects are responsible for such enhanced catalysis. The origin of the synergistic effect and possible reaction pathways for methanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and formaldehyde, as the most probable reaction intermediates. (C) 2014 Elsevier B.V. All rights reserved. T2 - Journal of Power Sources T1 - Methanol oxidation on Pd/Pt(poly) in alkaline solution VL - 273 SP - 724 EP - 734 DO - 10.1016/j.jpowsour.2014.09.138 ER -
@article{ author = "Maksić, Aleksandar and Rakočević, Zlatko Lj. and Smiljanić, Milutin Lj. and Nenadović, Miloš and Štrbac, Svetlana", year = "2015", abstract = "Bimetallic electrodes prepared by Pd nanoislands spontaneously deposited on polycrystalline platinum, Pt(poly), at submonolayer coverage were explored for methanol oxidation in alkaline media. Characterization of obtained Pd/Pt(poly) nanostructures was performed ex situ by AFM imaging, spectroscopic ellipsometry and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent methanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Platinum surface with 35% Pd coverage exhibited the highest catalytic activity for methanol oxidation in alkaline media, exceeding those of bare Pt and Pd. Both synergistic and electronic effects are responsible for such enhanced catalysis. The origin of the synergistic effect and possible reaction pathways for methanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and formaldehyde, as the most probable reaction intermediates. (C) 2014 Elsevier B.V. All rights reserved.", journal = "Journal of Power Sources", title = "Methanol oxidation on Pd/Pt(poly) in alkaline solution", volume = "273", pages = "724-734", doi = "10.1016/j.jpowsour.2014.09.138" }
Maksić, A., Rakočević, Z. Lj., Smiljanić, M. Lj., Nenadović, M.,& Štrbac, S.. (2015). Methanol oxidation on Pd/Pt(poly) in alkaline solution. in Journal of Power Sources, 273, 724-734. https://doi.org/10.1016/j.jpowsour.2014.09.138
Maksić A, Rakočević ZL, Smiljanić ML, Nenadović M, Štrbac S. Methanol oxidation on Pd/Pt(poly) in alkaline solution. in Journal of Power Sources. 2015;273:724-734. doi:10.1016/j.jpowsour.2014.09.138 .
Maksić, Aleksandar, Rakočević, Zlatko Lj., Smiljanić, Milutin Lj., Nenadović, Miloš, Štrbac, Svetlana, "Methanol oxidation on Pd/Pt(poly) in alkaline solution" in Journal of Power Sources, 273 (2015):724-734, https://doi.org/10.1016/j.jpowsour.2014.09.138 . .