Electro-oxidation of H2 and CO/H2-Mixtures on a Carbon-Supported Pt3 Sn Catalyst

T. J. Schmidt; H. A. Gasteiger; R. J. Behm

Electro-oxidation of H₂ and CO/H₂-Mixtures on a Carbon-Supported Pt₃ Sn Catalyst

T. J. Schmidt, H. A. Gasteiger, R. J. Behm

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

37 Scopus citations

Abstract

We present results of a rotating disk electrode (RDE) study on the electro-oxidation of CO contaminated H₂ feed gas (100 ppm - 2%) over a Vulcan supported Pt₃Sn catalyst, applying a newly developed thin-film RDE method for the measurement of high surface area catalysts. Measurements under fuel cell relevant conditions (steady state, continuous gas flow, 60°C) show a significantly improved CO tolerance as compared to state-of-the-art Pt and Pt_0.5Ru_0.5 anode catalysts, with an overpotential of 230 mV for 250 ppm and only 170 mV for 100 ppm CO/H₂ at a mass-specific current density of 0.5A/mg_metal, respectively.

Original language	English
Pages (from-to)	27-32
Number of pages	6
Journal	Journal of New Materials for Electrochemical Systems
Volume	2
Issue number	1
State	Published - 1999
Externally published	Yes

Keywords

Co/h-electro-oxidation
Ptsn
Rde h-electro-oxidation

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Electro-oxidation of H2 and CO/H2-Mixtures on a Carbon-Supported Pt3 Sn Catalyst",

abstract = "We present results of a rotating disk electrode (RDE) study on the electro-oxidation of CO contaminated H2 feed gas (100 ppm - 2%) over a Vulcan supported Pt3Sn catalyst, applying a newly developed thin-film RDE method for the measurement of high surface area catalysts. Measurements under fuel cell relevant conditions (steady state, continuous gas flow, 60°C) show a significantly improved CO tolerance as compared to state-of-the-art Pt and Pt0.5Ru0.5 anode catalysts, with an overpotential of 230 mV for 250 ppm and only 170 mV for 100 ppm CO/H2 at a mass-specific current density of 0.5A/mgmetal, respectively.",

keywords = "Co/h-electro-oxidation, Ptsn, Rde h-electro-oxidation",

author = "Schmidt, {T. J.} and Gasteiger, {H. A.} and Behm, {R. J.}",

year = "1999",

language = "English",

volume = "2",

pages = "27--32",

journal = "Journal of New Materials for Electrochemical Systems",

issn = "1480-2422",

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TY - JOUR

T1 - Electro-oxidation of H2 and CO/H2-Mixtures on a Carbon-Supported Pt3 Sn Catalyst

AU - Schmidt, T. J.

AU - Gasteiger, H. A.

AU - Behm, R. J.

PY - 1999

Y1 - 1999

N2 - We present results of a rotating disk electrode (RDE) study on the electro-oxidation of CO contaminated H2 feed gas (100 ppm - 2%) over a Vulcan supported Pt3Sn catalyst, applying a newly developed thin-film RDE method for the measurement of high surface area catalysts. Measurements under fuel cell relevant conditions (steady state, continuous gas flow, 60°C) show a significantly improved CO tolerance as compared to state-of-the-art Pt and Pt0.5Ru0.5 anode catalysts, with an overpotential of 230 mV for 250 ppm and only 170 mV for 100 ppm CO/H2 at a mass-specific current density of 0.5A/mgmetal, respectively.

AB - We present results of a rotating disk electrode (RDE) study on the electro-oxidation of CO contaminated H2 feed gas (100 ppm - 2%) over a Vulcan supported Pt3Sn catalyst, applying a newly developed thin-film RDE method for the measurement of high surface area catalysts. Measurements under fuel cell relevant conditions (steady state, continuous gas flow, 60°C) show a significantly improved CO tolerance as compared to state-of-the-art Pt and Pt0.5Ru0.5 anode catalysts, with an overpotential of 230 mV for 250 ppm and only 170 mV for 100 ppm CO/H2 at a mass-specific current density of 0.5A/mgmetal, respectively.

KW - Co/h-electro-oxidation

KW - Ptsn

KW - Rde h-electro-oxidation

UR - http://www.scopus.com/inward/record.url?scp=0002351048&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0002351048

SN - 1480-2422

VL - 2

SP - 27

EP - 32

JO - Journal of New Materials for Electrochemical Systems

JF - Journal of New Materials for Electrochemical Systems

IS - 1

ER -

Electro-oxidation of H₂ and CO/H₂-Mixtures on a Carbon-Supported Pt₃ Sn Catalyst

Abstract

Keywords

UN SDGs

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