Electrocatalytic activity of nanosized Pt alloys in the methanol oxidation reaction

I. Ávila-García; C. Ramírez; J. M. Hallen López; E. M. Arce Estrada

doi:10.1016/j.jallcom.2009.10.210

Electrocatalytic activity of nanosized Pt alloys in the methanol oxidation reaction

I. Ávila-García, C. Ramírez, J. M. Hallen López, E. M. Arce Estrada

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

40 Scopus citations

Abstract

The electrocatalysis of the methanol oxidation reaction on carbon supported nanosized Pt and Pt-M (M: Ru, Pd, Rh and Sn) electrocatalysts was investigated in 0.5 M H₂SO₄ + 0.1 M CH₃OH at room temperature by cyclic voltammetry and electrochemical impedance spectroscopy. The onset potential for methanol oxidation at GC/Pt-Ru/V was shifted to lower potentials and showed improved specific activity towards the methanol oxidation compared with platinum and the others Pt-M electrocatalysts studied. Accordingly, GC/Pt-Ru/V electrocatalysts showed an improved performance as anode materials in methanol oxidation reaction.

Original language	English
Pages (from-to)	462-465
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	495
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.10.210
State	Published - 16 Apr 2010
Externally published	Yes

Keywords

Bifunctional mechanism
Fuel cell
Methanol oxidation
Nanomaterials

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10.1016/j.jallcom.2009.10.210

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title = "Electrocatalytic activity of nanosized Pt alloys in the methanol oxidation reaction",

abstract = "The electrocatalysis of the methanol oxidation reaction on carbon supported nanosized Pt and Pt-M (M: Ru, Pd, Rh and Sn) electrocatalysts was investigated in 0.5 M H2SO4 + 0.1 M CH3OH at room temperature by cyclic voltammetry and electrochemical impedance spectroscopy. The onset potential for methanol oxidation at GC/Pt-Ru/V was shifted to lower potentials and showed improved specific activity towards the methanol oxidation compared with platinum and the others Pt-M electrocatalysts studied. Accordingly, GC/Pt-Ru/V electrocatalysts showed an improved performance as anode materials in methanol oxidation reaction.",

keywords = "Bifunctional mechanism, Fuel cell, Methanol oxidation, Nanomaterials",

author = "I. {\'A}vila-Garc{\'i}a and C. Ram{\'i}rez and {Hallen L{\'o}pez}, {J. M.} and {Arce Estrada}, {E. M.}",

note = "Funding Information: The authors wish to thanks the financial support from CGPI-IPN and CONACYT.",

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doi = "10.1016/j.jallcom.2009.10.210",

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T1 - Electrocatalytic activity of nanosized Pt alloys in the methanol oxidation reaction

AU - Ávila-García, I.

AU - Ramírez, C.

AU - Hallen López, J. M.

AU - Arce Estrada, E. M.

N1 - Funding Information: The authors wish to thanks the financial support from CGPI-IPN and CONACYT.

PY - 2010/4/16

Y1 - 2010/4/16

N2 - The electrocatalysis of the methanol oxidation reaction on carbon supported nanosized Pt and Pt-M (M: Ru, Pd, Rh and Sn) electrocatalysts was investigated in 0.5 M H2SO4 + 0.1 M CH3OH at room temperature by cyclic voltammetry and electrochemical impedance spectroscopy. The onset potential for methanol oxidation at GC/Pt-Ru/V was shifted to lower potentials and showed improved specific activity towards the methanol oxidation compared with platinum and the others Pt-M electrocatalysts studied. Accordingly, GC/Pt-Ru/V electrocatalysts showed an improved performance as anode materials in methanol oxidation reaction.

AB - The electrocatalysis of the methanol oxidation reaction on carbon supported nanosized Pt and Pt-M (M: Ru, Pd, Rh and Sn) electrocatalysts was investigated in 0.5 M H2SO4 + 0.1 M CH3OH at room temperature by cyclic voltammetry and electrochemical impedance spectroscopy. The onset potential for methanol oxidation at GC/Pt-Ru/V was shifted to lower potentials and showed improved specific activity towards the methanol oxidation compared with platinum and the others Pt-M electrocatalysts studied. Accordingly, GC/Pt-Ru/V electrocatalysts showed an improved performance as anode materials in methanol oxidation reaction.

KW - Bifunctional mechanism

KW - Fuel cell

KW - Methanol oxidation

KW - Nanomaterials

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U2 - 10.1016/j.jallcom.2009.10.210

DO - 10.1016/j.jallcom.2009.10.210

M3 - Artículo

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VL - 495

SP - 462

EP - 465

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Electrocatalytic activity of nanosized Pt alloys in the methanol oxidation reaction

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Keywords

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