Oxygen reduction in acid media: effect of iron substitution by cobalt on heat-treated naphthalocyanine impregnations supported on preselected carbon blacks

A. Biloul; O. Contamin; G. Scarbeck; M. Savy; D. van den Ham; J. Riga; J.J. Verbist

doi:10.1016/0022-0728(92)80240-5

Oxygen reduction in acid media: effect of iron substitution by cobalt on heat-treated naphthalocyanine impregnations supported on preselected carbon blacks

A. Biloul, O. Contamin, G. Scarbeck, M. Savy, D. van den Ham, J. Riga, J.J. Verbist

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Abstract

FeNPc(1.2) impregnations were investigated at various loadings using a rotating-disk electrode, voltammetry and X-ray photoelectron spectroscopy (XPS) techniques. Optimal activity takes place at monolayer coverage, and major demetallation occurs after prolonged exposure to acid solution. The substitution of Fe by Co enables the electrochemical performances to reach those presented by 10% Pt on Vulcan and stops the demetallation process. The application of fast atomic bombardment secondary ion mass spectrometry (FABS) together with XPS sheds light on the detrimental role of some electrophilic groups attached to the carbon black-catalyst interface.

Original language	English
Pages (from-to)	163-186
Journal	Journal of electroanalytical chemistry
Volume	335
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(92)80240-5
Publication status	Published - 1992

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@article{1126a877db6c42a5921f9138f792b69c,

title = "Oxygen reduction in acid media: effect of iron substitution by cobalt on heat-treated naphthalocyanine impregnations supported on preselected carbon blacks",

abstract = "FeNPc(1.2) impregnations were investigated at various loadings using a rotating-disk electrode, voltammetry and X-ray photoelectron spectroscopy (XPS) techniques. Optimal activity takes place at monolayer coverage, and major demetallation occurs after prolonged exposure to acid solution. The substitution of Fe by Co enables the electrochemical performances to reach those presented by 10% Pt on Vulcan and stops the demetallation process. The application of fast atomic bombardment secondary ion mass spectrometry (FABS) together with XPS sheds light on the detrimental role of some electrophilic groups attached to the carbon black-catalyst interface.",

author = "A. Biloul and O. Contamin and G. Scarbeck and M. Savy and {van den Ham}, D. and J. Riga and J.J. Verbist",

year = "1992",

doi = "10.1016/0022-0728(92)80240-5",

language = "English",

volume = "335",

pages = "163--186",

journal = "Journal of electroanalytical chemistry",

issn = "1572-6657",

publisher = "Elsevier",

number = "1-2",

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TY - JOUR

T1 - Oxygen reduction in acid media: effect of iron substitution by cobalt on heat-treated naphthalocyanine impregnations supported on preselected carbon blacks

AU - Biloul, A.

AU - Contamin, O.

AU - Scarbeck, G.

AU - Savy, M.

AU - van den Ham, D.

AU - Riga, J.

AU - Verbist, J.J.

PY - 1992

Y1 - 1992

N2 - FeNPc(1.2) impregnations were investigated at various loadings using a rotating-disk electrode, voltammetry and X-ray photoelectron spectroscopy (XPS) techniques. Optimal activity takes place at monolayer coverage, and major demetallation occurs after prolonged exposure to acid solution. The substitution of Fe by Co enables the electrochemical performances to reach those presented by 10% Pt on Vulcan and stops the demetallation process. The application of fast atomic bombardment secondary ion mass spectrometry (FABS) together with XPS sheds light on the detrimental role of some electrophilic groups attached to the carbon black-catalyst interface.

AB - FeNPc(1.2) impregnations were investigated at various loadings using a rotating-disk electrode, voltammetry and X-ray photoelectron spectroscopy (XPS) techniques. Optimal activity takes place at monolayer coverage, and major demetallation occurs after prolonged exposure to acid solution. The substitution of Fe by Co enables the electrochemical performances to reach those presented by 10% Pt on Vulcan and stops the demetallation process. The application of fast atomic bombardment secondary ion mass spectrometry (FABS) together with XPS sheds light on the detrimental role of some electrophilic groups attached to the carbon black-catalyst interface.

U2 - 10.1016/0022-0728(92)80240-5

DO - 10.1016/0022-0728(92)80240-5

M3 - Article

SN - 1572-6657

VL - 335

SP - 163

EP - 186

JO - Journal of electroanalytical chemistry

JF - Journal of electroanalytical chemistry

IS - 1-2

ER -

Oxygen reduction in acid media: effect of iron substitution by cobalt on heat-treated naphthalocyanine impregnations supported on preselected carbon blacks

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