Pt/C catalyst for PEM fuel cells: Control of Pt nanoparticles characteristics through a novel plasma deposition method

Mathilde Brocq, Nathalie Job, David Eskenazi, Jean Jacques Pireaux

Résultats de recherche: Contribution à un journal/une revueArticle

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Résumé

A novel low-temperature plasma method, using Pt acetylacetonate as a precursor, was used for the first time to produce Pt/carbon black catalysts for polymer electrolyte membrane fuel cells. Catalysts were prepared under various plasma conditions and characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Pt nanoparticles with an average diameter of around 3. nm, which are mainly metallic and quite homogeneously distributed with a Pt loading up to 40. wt%, were successfully formed on carbon black by a 100. W-oxygen plasma treatment. During the plasma treatment, the precursor is thermally decomposed, and some oxidized carbon sites or defects appear at the surface of the carbon black due to interactions with the plasma; these oxidized carbon sites or surface defects probably act as anchoring sites for the nucleation of Pt nanoparticles. The decomposition of the precursor mainly depends on the plasma power whereas the formation of the anchoring sites depends on the stirring of the reactants and on the nature of the plasma gas.
langue originaleAnglais
Pages (de - à)453-463
Nombre de pages11
journalApplied Catalysis B: Environmental
Volume147
Les DOIs
étatPublié - 5 avr. 2014

Empreinte digitale

Plasma deposition
fuel cell
Fuel cells
catalyst
Nanoparticles
Soot
Plasmas
plasma
Catalysts
black carbon
Carbon black
Carbon
defect
Plasma Gases
Surface defects
Beam plasma interactions
Proton exchange membrane fuel cells (PEMFC)
carbon
method
nanoparticle

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title = "Pt/C catalyst for PEM fuel cells: Control of Pt nanoparticles characteristics through a novel plasma deposition method",
abstract = "A novel low-temperature plasma method, using Pt acetylacetonate as a precursor, was used for the first time to produce Pt/carbon black catalysts for polymer electrolyte membrane fuel cells. Catalysts were prepared under various plasma conditions and characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Pt nanoparticles with an average diameter of around 3. nm, which are mainly metallic and quite homogeneously distributed with a Pt loading up to 40. wt{\%}, were successfully formed on carbon black by a 100. W-oxygen plasma treatment. During the plasma treatment, the precursor is thermally decomposed, and some oxidized carbon sites or defects appear at the surface of the carbon black due to interactions with the plasma; these oxidized carbon sites or surface defects probably act as anchoring sites for the nucleation of Pt nanoparticles. The decomposition of the precursor mainly depends on the plasma power whereas the formation of the anchoring sites depends on the stirring of the reactants and on the nature of the plasma gas.",
keywords = "Catalyst, Fuel cells, Nanoparticles, Plasma treatment, X-ray photoelectron spectroscopy",
author = "Mathilde Brocq and Nathalie Job and David Eskenazi and Pireaux, {Jean Jacques}",
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Pt/C catalyst for PEM fuel cells: Control of Pt nanoparticles characteristics through a novel plasma deposition method. / Brocq, Mathilde; Job, Nathalie; Eskenazi, David; Pireaux, Jean Jacques.

Dans: Applied Catalysis B: Environmental, Vol 147, 05.04.2014, p. 453-463.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Pt/C catalyst for PEM fuel cells: Control of Pt nanoparticles characteristics through a novel plasma deposition method

AU - Brocq, Mathilde

AU - Job, Nathalie

AU - Eskenazi, David

AU - Pireaux, Jean Jacques

PY - 2014/4/5

Y1 - 2014/4/5

N2 - A novel low-temperature plasma method, using Pt acetylacetonate as a precursor, was used for the first time to produce Pt/carbon black catalysts for polymer electrolyte membrane fuel cells. Catalysts were prepared under various plasma conditions and characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Pt nanoparticles with an average diameter of around 3. nm, which are mainly metallic and quite homogeneously distributed with a Pt loading up to 40. wt%, were successfully formed on carbon black by a 100. W-oxygen plasma treatment. During the plasma treatment, the precursor is thermally decomposed, and some oxidized carbon sites or defects appear at the surface of the carbon black due to interactions with the plasma; these oxidized carbon sites or surface defects probably act as anchoring sites for the nucleation of Pt nanoparticles. The decomposition of the precursor mainly depends on the plasma power whereas the formation of the anchoring sites depends on the stirring of the reactants and on the nature of the plasma gas.

AB - A novel low-temperature plasma method, using Pt acetylacetonate as a precursor, was used for the first time to produce Pt/carbon black catalysts for polymer electrolyte membrane fuel cells. Catalysts were prepared under various plasma conditions and characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Pt nanoparticles with an average diameter of around 3. nm, which are mainly metallic and quite homogeneously distributed with a Pt loading up to 40. wt%, were successfully formed on carbon black by a 100. W-oxygen plasma treatment. During the plasma treatment, the precursor is thermally decomposed, and some oxidized carbon sites or defects appear at the surface of the carbon black due to interactions with the plasma; these oxidized carbon sites or surface defects probably act as anchoring sites for the nucleation of Pt nanoparticles. The decomposition of the precursor mainly depends on the plasma power whereas the formation of the anchoring sites depends on the stirring of the reactants and on the nature of the plasma gas.

KW - Catalyst

KW - Fuel cells

KW - Nanoparticles

KW - Plasma treatment

KW - X-ray photoelectron spectroscopy

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