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^*

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

27 引文斯高帕斯（Scopus）

摘要

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.

原文	英語
頁（從 - 到）	159-166
頁數	8
期刊	ChemCatChem
卷	2
發行號	2
DOIs	https://doi.org/10.1002/cctc.200900051
出版狀態	已發佈 - 2010 2月 8

ASJC Scopus subject areas

催化
物理與理論化學
有機化學
無機化學

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10.1002/cctc.200900051

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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}",

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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

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Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

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