Methanol oxidation on carbon-supported Pt-Os bimetallic nanoparticle electrocatalysts

Junjie Huang; Hui Yang; Qinghong Huang; Yawen Tang; Tianhong Lu; Daniel L. Akins

doi:10.1149/1.1804257

Methanol oxidation on carbon-supported Pt-Os bimetallic nanoparticle electrocatalysts

Junjie Huang, Hui Yang, Qinghong Huang, Yawen Tang, Tianhong Lu, Daniel L. Akins

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

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Abstract

The electrocatalytic oxidation of methanol on carbon-supported bimetallic Pt-Os nanopaiticle catalysts has been investigated. The as-prepared Pt-Os nanoparticles, which are single-phase disordered structures and well dispersed on the surface of carbon with a narrow size distribution, exhibit, respectively, significantly enhanced and slightly enhanced activities for methanol oxidation when compared to commercial Pt/C and Pt-Ru (1:1)C catalysts. The maximum activity of our Pt-Os based catalysts for methanol oxidation was at a Pt/Os atomic ratio of 3:1. Such an enhanced activity can be rationalized by a combination of a bifunctional mechanism and an electronic effect. All rights reserved.

Original language	English
Pages (from-to)	A1810-A1815
Journal	Journal of the Electrochemical Society
Volume	151
Issue number	11
DOIs	https://doi.org/10.1149/1.1804257
State	Published - 2004
Externally published	Yes

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title = "Methanol oxidation on carbon-supported Pt-Os bimetallic nanoparticle electrocatalysts",

abstract = "The electrocatalytic oxidation of methanol on carbon-supported bimetallic Pt-Os nanopaiticle catalysts has been investigated. The as-prepared Pt-Os nanoparticles, which are single-phase disordered structures and well dispersed on the surface of carbon with a narrow size distribution, exhibit, respectively, significantly enhanced and slightly enhanced activities for methanol oxidation when compared to commercial Pt/C and Pt-Ru (1:1)C catalysts. The maximum activity of our Pt-Os based catalysts for methanol oxidation was at a Pt/Os atomic ratio of 3:1. Such an enhanced activity can be rationalized by a combination of a bifunctional mechanism and an electronic effect. All rights reserved.",

author = "Junjie Huang and Hui Yang and Qinghong Huang and Yawen Tang and Tianhong Lu and Akins, {Daniel L.}",

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T1 - Methanol oxidation on carbon-supported Pt-Os bimetallic nanoparticle electrocatalysts

AU - Huang, Junjie

AU - Yang, Hui

AU - Huang, Qinghong

AU - Tang, Yawen

AU - Lu, Tianhong

AU - Akins, Daniel L.

PY - 2004

Y1 - 2004

N2 - The electrocatalytic oxidation of methanol on carbon-supported bimetallic Pt-Os nanopaiticle catalysts has been investigated. The as-prepared Pt-Os nanoparticles, which are single-phase disordered structures and well dispersed on the surface of carbon with a narrow size distribution, exhibit, respectively, significantly enhanced and slightly enhanced activities for methanol oxidation when compared to commercial Pt/C and Pt-Ru (1:1)C catalysts. The maximum activity of our Pt-Os based catalysts for methanol oxidation was at a Pt/Os atomic ratio of 3:1. Such an enhanced activity can be rationalized by a combination of a bifunctional mechanism and an electronic effect. All rights reserved.

AB - The electrocatalytic oxidation of methanol on carbon-supported bimetallic Pt-Os nanopaiticle catalysts has been investigated. The as-prepared Pt-Os nanoparticles, which are single-phase disordered structures and well dispersed on the surface of carbon with a narrow size distribution, exhibit, respectively, significantly enhanced and slightly enhanced activities for methanol oxidation when compared to commercial Pt/C and Pt-Ru (1:1)C catalysts. The maximum activity of our Pt-Os based catalysts for methanol oxidation was at a Pt/Os atomic ratio of 3:1. Such an enhanced activity can be rationalized by a combination of a bifunctional mechanism and an electronic effect. All rights reserved.

UR - http://www.scopus.com/inward/record.url?scp=10944230409&partnerID=8YFLogxK

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DO - 10.1149/1.1804257

M3 - 文章

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SN - 0013-4651

VL - 151

SP - A1810-A1815

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 11

ER -

Methanol oxidation on carbon-supported Pt-Os bimetallic nanoparticle electrocatalysts

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