Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry

N. Fujiwara; K. A. Friedrich; U. Stimming

doi:10.1016/S0022-0728(99)00282-X

Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry

N. Fujiwara, K. A. Friedrich, U. Stimming

Forschungszentrum Jülich (FZJ)

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Abstract

The oxidation of ethanol in aqueous HClO₄ was studied on co-electrodeposited PtRu electrodes in a temperature range of 5-40 °C by means of differential electrochemical mass spectrometry (DEMS). The formation of carbon dioxide and acetaldehyde were monitored by ion currents at appropriate masses. The presence of Ru promotes the surface reaction between the organic chemisorbate and the oxidant, whereas it may inhibit ethanol adsorption on the electrode. Optimum composition of the electrode for total oxidation was found to vary from Pt_0.67Ru_0.33 at 5 °C to Pt_0.85Ru_0.15 at higher temperatures.

Original language	English
Pages (from-to)	120-125
Number of pages	6
Journal	Journal of Electroanalytical Chemistry
Volume	472
Issue number	2
DOIs	https://doi.org/10.1016/S0022-0728(99)00282-X
State	Published - 30 Aug 1999
Externally published	Yes

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title = "Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry",

abstract = "The oxidation of ethanol in aqueous HClO4 was studied on co-electrodeposited PtRu electrodes in a temperature range of 5-40 °C by means of differential electrochemical mass spectrometry (DEMS). The formation of carbon dioxide and acetaldehyde were monitored by ion currents at appropriate masses. The presence of Ru promotes the surface reaction between the organic chemisorbate and the oxidant, whereas it may inhibit ethanol adsorption on the electrode. Optimum composition of the electrode for total oxidation was found to vary from Pt0.67Ru0.33 at 5 °C to Pt0.85Ru0.15 at higher temperatures.",

author = "N. Fujiwara and Friedrich, {K. A.} and U. Stimming",

year = "1999",

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doi = "10.1016/S0022-0728(99)00282-X",

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T1 - Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry

AU - Fujiwara, N.

AU - Friedrich, K. A.

AU - Stimming, U.

PY - 1999/8/30

Y1 - 1999/8/30

N2 - The oxidation of ethanol in aqueous HClO4 was studied on co-electrodeposited PtRu electrodes in a temperature range of 5-40 °C by means of differential electrochemical mass spectrometry (DEMS). The formation of carbon dioxide and acetaldehyde were monitored by ion currents at appropriate masses. The presence of Ru promotes the surface reaction between the organic chemisorbate and the oxidant, whereas it may inhibit ethanol adsorption on the electrode. Optimum composition of the electrode for total oxidation was found to vary from Pt0.67Ru0.33 at 5 °C to Pt0.85Ru0.15 at higher temperatures.

AB - The oxidation of ethanol in aqueous HClO4 was studied on co-electrodeposited PtRu electrodes in a temperature range of 5-40 °C by means of differential electrochemical mass spectrometry (DEMS). The formation of carbon dioxide and acetaldehyde were monitored by ion currents at appropriate masses. The presence of Ru promotes the surface reaction between the organic chemisorbate and the oxidant, whereas it may inhibit ethanol adsorption on the electrode. Optimum composition of the electrode for total oxidation was found to vary from Pt0.67Ru0.33 at 5 °C to Pt0.85Ru0.15 at higher temperatures.

UR - http://www.scopus.com/inward/record.url?scp=0343390971&partnerID=8YFLogxK

U2 - 10.1016/S0022-0728(99)00282-X

DO - 10.1016/S0022-0728(99)00282-X

M3 - Article

AN - SCOPUS:0343390971

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VL - 472

SP - 120

EP - 125

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 2

ER -

Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry

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