Effect of platinum present in multi-element nanoparticles on methanol oxidation

Chih Fang Tsai; Kung Yu Yeh; Pu-Wei Wu; Yi Fan Hsieh; Pang Lin

doi:10.1016/j.jallcom.2008.12.055

Effect of platinum present in multi-element nanoparticles on methanol oxidation

Chih Fang Tsai, Kung Yu Yeh, Pu-Wei Wu^*, Yi Fan Hsieh, Pang Lin

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

15 Scopus citations

Abstract

Nanoparticles of Pt_xFe_(100-x)/5Co_(100-x)/5Ni_(100-x)/5Cu_(100-x)/5Ag_(100-x)/5 (x = 22, 29, 52, 56) were prepared by the sputter depositions on pretreated carbon clothes with their electrocatalytic abilities for the methanol oxidation investigated. XRD analysis of the deposited nanoparticles indicated crystalline fcc phases and SEM images revealed apparent growths of nanoparticulate nodules. Their average sizes were found to increase with the deposition time. Cyclic voltammetry of the deposited samples demonstrated enhancements in the current responses with increasing Pt amount and deposition time. In mass activity, the Pt₅₂Fe₁₁Co₁₀Ni₁₁Cu₁₀Ag₈ exhibited the highest values of 462-504 mA/mg. Identical process was conducted to fabricate electrodes with sputtered Pt and Pt₄₃Ru₅₇. In comparison, the Pt₅₂Fe₁₁Co₁₀Ni₁₁Cu₁₀Ag₈ showed moderate improvements over that of Pt but was still outperformed by the Pt₄₃Ru₅₇.

Original language	English
Pages (from-to)	868-871
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	478
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.12.055
State	Published - 10 Jun 2009

Keywords

Catalysis
Fuel cells
Methanol oxidation
Nanostructured materials

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@article{36868ea53fc9420fb875ddadf217bc97,

title = "Effect of platinum present in multi-element nanoparticles on methanol oxidation",

abstract = "Nanoparticles of PtxFe(100-x)/5Co(100-x)/5Ni(100-x)/5Cu(100-x)/5Ag(100-x)/5 (x = 22, 29, 52, 56) were prepared by the sputter depositions on pretreated carbon clothes with their electrocatalytic abilities for the methanol oxidation investigated. XRD analysis of the deposited nanoparticles indicated crystalline fcc phases and SEM images revealed apparent growths of nanoparticulate nodules. Their average sizes were found to increase with the deposition time. Cyclic voltammetry of the deposited samples demonstrated enhancements in the current responses with increasing Pt amount and deposition time. In mass activity, the Pt52Fe11Co10Ni11Cu10Ag8 exhibited the highest values of 462-504 mA/mg. Identical process was conducted to fabricate electrodes with sputtered Pt and Pt43Ru57. In comparison, the Pt52Fe11Co10Ni11Cu10Ag8 showed moderate improvements over that of Pt but was still outperformed by the Pt43Ru57.",

keywords = "Catalysis, Fuel cells, Methanol oxidation, Nanostructured materials",

author = "Tsai, {Chih Fang} and Yeh, {Kung Yu} and Pu-Wei Wu and Hsieh, {Yi Fan} and Pang Lin",

year = "2009",

month = jun,

day = "10",

doi = "10.1016/j.jallcom.2008.12.055",

language = "English",

volume = "478",

pages = "868--871",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Effect of platinum present in multi-element nanoparticles on methanol oxidation

AU - Tsai, Chih Fang

AU - Yeh, Kung Yu

AU - Wu, Pu-Wei

AU - Hsieh, Yi Fan

AU - Lin, Pang

PY - 2009/6/10

Y1 - 2009/6/10

N2 - Nanoparticles of PtxFe(100-x)/5Co(100-x)/5Ni(100-x)/5Cu(100-x)/5Ag(100-x)/5 (x = 22, 29, 52, 56) were prepared by the sputter depositions on pretreated carbon clothes with their electrocatalytic abilities for the methanol oxidation investigated. XRD analysis of the deposited nanoparticles indicated crystalline fcc phases and SEM images revealed apparent growths of nanoparticulate nodules. Their average sizes were found to increase with the deposition time. Cyclic voltammetry of the deposited samples demonstrated enhancements in the current responses with increasing Pt amount and deposition time. In mass activity, the Pt52Fe11Co10Ni11Cu10Ag8 exhibited the highest values of 462-504 mA/mg. Identical process was conducted to fabricate electrodes with sputtered Pt and Pt43Ru57. In comparison, the Pt52Fe11Co10Ni11Cu10Ag8 showed moderate improvements over that of Pt but was still outperformed by the Pt43Ru57.

AB - Nanoparticles of PtxFe(100-x)/5Co(100-x)/5Ni(100-x)/5Cu(100-x)/5Ag(100-x)/5 (x = 22, 29, 52, 56) were prepared by the sputter depositions on pretreated carbon clothes with their electrocatalytic abilities for the methanol oxidation investigated. XRD analysis of the deposited nanoparticles indicated crystalline fcc phases and SEM images revealed apparent growths of nanoparticulate nodules. Their average sizes were found to increase with the deposition time. Cyclic voltammetry of the deposited samples demonstrated enhancements in the current responses with increasing Pt amount and deposition time. In mass activity, the Pt52Fe11Co10Ni11Cu10Ag8 exhibited the highest values of 462-504 mA/mg. Identical process was conducted to fabricate electrodes with sputtered Pt and Pt43Ru57. In comparison, the Pt52Fe11Co10Ni11Cu10Ag8 showed moderate improvements over that of Pt but was still outperformed by the Pt43Ru57.

KW - Catalysis

KW - Fuel cells

KW - Methanol oxidation

KW - Nanostructured materials

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DO - 10.1016/j.jallcom.2008.12.055

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EP - 871

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

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