Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

Ching Hsiang Chen; Loka Subramanyam Sarma; Di Yan Wang; Feng Ju Lai; Cun Cun Al Andra; Shi Hong Chang; Din Goa Liu; Chia Chun Chen; Jyh Fu Lee; Bing Joe Hwang

doi:10.1002/cctc.200900051

Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

Ching Hsiang Chen, Loka Subramanyam Sarma, Di Yan Wang, Feng Ju Lai, Cun Cun Al Andra, Shi Hong Chang, Din Goa Liu, Chia Chun Chen, Jyh Fu Lee, Bing Joe Hwang^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

A promising electrocatalyst based on the reduction of Pt²⁺ ions on the surface of hexagonally close-packed (hcp) Ru core nanoparticles has been prepared by a redox-transmetalation process. This simple synthetic process generates a Pt-on-Ru catalyst with a lower Pt content than commercially available Pt-Ru electrocatalysts and with a long-range ordered hcp structure, which can significantly reduce the Pt loading. X-Ray absorption spectroscopy of the Pt-on-Ru catalyst reveals pronounced electronic modifications when compared to the commercial Pt-Ru black catalyst. The Pt-on-Ru catalyst exhibits a higher mass-specific current than the Pt-Ru black catalyst in solution in 0.5M H₂SO₄ with 10 vol.% CH₃OH under the conditions of rotating disk experiments. Further optimization of this synthetic procedure may yield even more active electrocatalysts with a significant reduction in noble metal loadings.

Original language	English
Pages (from-to)	159-166
Number of pages	8
Journal	ChemCatChem
Volume	2
Issue number	2
DOIs	https://doi.org/10.1002/cctc.200900051
Publication status	Published - 2010 Feb 8

Keywords

Electrocatalysis
Electrochemistry
Fuel cells
Nanoparticles
X-ray absorption spectroscopy

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

Access to Document

10.1002/cctc.200900051

Cite this

@article{04631974b510432690ef9164a0b6a0ff,

title = "Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation",

abstract = "A promising electrocatalyst based on the reduction of Pt2+ ions on the surface of hexagonally close-packed (hcp) Ru core nanoparticles has been prepared by a redox-transmetalation process. This simple synthetic process generates a Pt-on-Ru catalyst with a lower Pt content than commercially available Pt-Ru electrocatalysts and with a long-range ordered hcp structure, which can significantly reduce the Pt loading. X-Ray absorption spectroscopy of the Pt-on-Ru catalyst reveals pronounced electronic modifications when compared to the commercial Pt-Ru black catalyst. The Pt-on-Ru catalyst exhibits a higher mass-specific current than the Pt-Ru black catalyst in solution in 0.5M H2SO4 with 10 vol.% CH3OH under the conditions of rotating disk experiments. Further optimization of this synthetic procedure may yield even more active electrocatalysts with a significant reduction in noble metal loadings.",

keywords = "Electrocatalysis, Electrochemistry, Fuel cells, Nanoparticles, X-ray absorption spectroscopy",

author = "Chen, {Ching Hsiang} and Sarma, {Loka Subramanyam} and Wang, {Di Yan} and Lai, {Feng Ju} and {Al Andra}, {Cun Cun} and Chang, {Shi Hong} and Liu, {Din Goa} and Chen, {Chia Chun} and Lee, {Jyh Fu} and Hwang, {Bing Joe}",

year = "2010",

month = feb,

day = "8",

doi = "10.1002/cctc.200900051",

language = "English",

volume = "2",

pages = "159--166",

journal = "ChemCatChem",

issn = "1867-3880",

publisher = "Wiley - VCH Verlag GmbH & CO. KGaA",

number = "2",

}

TY - JOUR

T1 - Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

AU - Chen, Ching Hsiang

AU - Sarma, Loka Subramanyam

AU - Wang, Di Yan

AU - Lai, Feng Ju

AU - Al Andra, Cun Cun

AU - Chang, Shi Hong

AU - Liu, Din Goa

AU - Chen, Chia Chun

AU - Lee, Jyh Fu

AU - Hwang, Bing Joe

PY - 2010/2/8

Y1 - 2010/2/8

N2 - A promising electrocatalyst based on the reduction of Pt2+ ions on the surface of hexagonally close-packed (hcp) Ru core nanoparticles has been prepared by a redox-transmetalation process. This simple synthetic process generates a Pt-on-Ru catalyst with a lower Pt content than commercially available Pt-Ru electrocatalysts and with a long-range ordered hcp structure, which can significantly reduce the Pt loading. X-Ray absorption spectroscopy of the Pt-on-Ru catalyst reveals pronounced electronic modifications when compared to the commercial Pt-Ru black catalyst. The Pt-on-Ru catalyst exhibits a higher mass-specific current than the Pt-Ru black catalyst in solution in 0.5M H2SO4 with 10 vol.% CH3OH under the conditions of rotating disk experiments. Further optimization of this synthetic procedure may yield even more active electrocatalysts with a significant reduction in noble metal loadings.

AB - A promising electrocatalyst based on the reduction of Pt2+ ions on the surface of hexagonally close-packed (hcp) Ru core nanoparticles has been prepared by a redox-transmetalation process. This simple synthetic process generates a Pt-on-Ru catalyst with a lower Pt content than commercially available Pt-Ru electrocatalysts and with a long-range ordered hcp structure, which can significantly reduce the Pt loading. X-Ray absorption spectroscopy of the Pt-on-Ru catalyst reveals pronounced electronic modifications when compared to the commercial Pt-Ru black catalyst. The Pt-on-Ru catalyst exhibits a higher mass-specific current than the Pt-Ru black catalyst in solution in 0.5M H2SO4 with 10 vol.% CH3OH under the conditions of rotating disk experiments. Further optimization of this synthetic procedure may yield even more active electrocatalysts with a significant reduction in noble metal loadings.

KW - Electrocatalysis

KW - Electrochemistry

KW - Fuel cells

KW - Nanoparticles

KW - X-ray absorption spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=77956671118&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956671118&partnerID=8YFLogxK

U2 - 10.1002/cctc.200900051

DO - 10.1002/cctc.200900051

M3 - Article

AN - SCOPUS:77956671118

SN - 1867-3880

VL - 2

SP - 159

EP - 166

JO - ChemCatChem

JF - ChemCatChem

IS - 2

ER -

Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this