Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation
Тип публикации: Journal Article
Дата публикации: 2007-12-26
SCImago Q1
WOS Q2
БС1
SJR: 0.729
CiteScore: 6
Impact factor: 3.5
ISSN: 00134651, 19457111
Materials Chemistry
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Electrochemistry
Condensed Matter Physics
Renewable Energy, Sustainability and the Environment
Краткое описание
We developed electrocatalysts with a monolayer-level Pt content for methanol oxidation by depositing Pt or Pt + M (M = Os, Ir, Rh, Pd) on the surfaces of Ru nanoparticles through the galvanic replacement of Cu adlayers and by chemically reducing Pt ions on a NbO 2 oxide surface. Compared with a commercial PtRu/C alloy catalyst, the electrocatalyst with a monolayer of Pt (Pt ML /Ru/C) showed three times higher Pt mass activity and improved durability for methanol oxidation. The activity originates from the efficient bifunctional mechanism as well as the electronic effect that weakens the Pt-CO bonding facilitated by optimized size of Pt-free and Pt-covered Ru support. Electrocatalysts comprising mixed-metal M + Pt on Ru nanoparticles also had higher activity than the commercial one but did not surpass the Pt ML /Ru/C electrocatalyst. The properties of the electrocatalysts composed of a monolayer amount of Pt deposited on niobium oxide nanoparticles indicate that NbO 2 holds considerable promise as a support for a Pt monolayer for methanol oxidation.
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ГОСТ
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SASAKI K., Adzic R. Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation // Journal of the Electrochemical Society. 2007. Vol. 155. No. 2. p. B180.
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SASAKI K., Adzic R. Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation // Journal of the Electrochemical Society. 2007. Vol. 155. No. 2. p. B180.
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TY - JOUR
DO - 10.1149/1.2816238
UR - https://doi.org/10.1149/1.2816238
TI - Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation
T2 - Journal of the Electrochemical Society
AU - SASAKI, Kazuo
AU - Adzic, Radoslav
PY - 2007
DA - 2007/12/26
PB - The Electrochemical Society
SP - B180
IS - 2
VL - 155
SN - 0013-4651
SN - 1945-7111
ER -
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BibTex (до 50 авторов)
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@article{2007_SASAKI,
author = {Kazuo SASAKI and Radoslav Adzic},
title = {Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation},
journal = {Journal of the Electrochemical Society},
year = {2007},
volume = {155},
publisher = {The Electrochemical Society},
month = {dec},
url = {https://doi.org/10.1149/1.2816238},
number = {2},
pages = {B180},
doi = {10.1149/1.2816238}
}
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MLA
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SASAKI, Kazuo, and Radoslav Adzic. “Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation.” Journal of the Electrochemical Society, vol. 155, no. 2, Dec. 2007, p. B180. https://doi.org/10.1149/1.2816238.
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