Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle.
Publication type: Journal Article
Publication date: 2011-11-07
scimago Q1
wos Q2
SJR: 0.763
CiteScore: 6.0
Impact factor: 3.9
ISSN: 07437463, 15205827
PubMed ID:
22014064
Spectroscopy
Electrochemistry
Condensed Matter Physics
General Materials Science
Surfaces and Interfaces
Abstract
An understanding of the oxidation of chemisorbed CO (CO(chem)) on Pt nanoparticle surfaces is of major importance to fuel cell technology. Here, we report on the relation between Pt nanoparticle surface structure and CO(chem) oxidative stripping behavior. Oxidative stripping voltammograms are obtained for CO(chem) preadsorbed on cubic, octahedral, and cuboctahedral Pt nanoparticles that possess preferentially oriented and atomically flat domains. They are compared to those obtained for etched and thermally treated Pt(poly) electrodes that possess atomically flat, ordered surface domains separated by grain boundaries as well as those obtained for spherical Pt nanoparticles. A detailed analysis of the results reveals for the first time the presence of up to four voltammetric features in CO(chem) oxidative stripping transients, a prepeak and three peaks, that are assigned to the presence of surface domains that are either preferentially oriented or disordered. The interpretation reported in this article allows one to explain all features within the voltammograms for CO(chem) oxidative stripping unambiguously.
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Total citations:
131
Citations from 2025:
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(3.82%)
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GOST
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Urchaga P. et al. Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle. // Langmuir. 2011. Vol. 28. No. 7. pp. 3658-3663.
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Urchaga P., Baranton S., Coutanceau C., Jerkiewicz G. Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle. // Langmuir. 2011. Vol. 28. No. 7. pp. 3658-3663.
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RIS
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TY - JOUR
DO - 10.1021/la202913b
UR - https://doi.org/10.1021/la202913b
TI - Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle.
T2 - Langmuir
AU - Urchaga, Patrick
AU - Baranton, Stève
AU - Coutanceau, Christophe
AU - Jerkiewicz, Gregory
PY - 2011
DA - 2011/11/07
PB - American Chemical Society (ACS)
SP - 3658-3663
IS - 7
VL - 28
PMID - 22014064
SN - 0743-7463
SN - 1520-5827
ER -
Cite this
BibTex (up to 50 authors)
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@article{2011_Urchaga,
author = {Patrick Urchaga and Stève Baranton and Christophe Coutanceau and Gregory Jerkiewicz},
title = {Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle.},
journal = {Langmuir},
year = {2011},
volume = {28},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/la202913b},
number = {7},
pages = {3658--3663},
doi = {10.1021/la202913b}
}
Cite this
MLA
Copy
Urchaga, Patrick, et al. “Electro-oxidation of CO(chem) on Pt nanosurfaces: solution of the peak multiplicity puzzle..” Langmuir, vol. 28, no. 7, Nov. 2011, pp. 3658-3663. https://doi.org/10.1021/la202913b.