Electrooxidation of acetaldehyde on platinum-modified Ti/Ru 0.3Ti0.7O2 electrodes

J. C. Forti; A. Manzo-Robledo; K. B. Kokoh; A. R. De Andrade; N. Alonso-Vante

doi:10.1016/j.electacta.2005.07.055

Electrooxidation of acetaldehyde on platinum-modified Ti/Ru _0.3Ti_0.7O₂ electrodes

J. C. Forti, A. Manzo-Robledo, K. B. Kokoh, A. R. De Andrade, N. Alonso-Vante

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

16 Scopus citations

Abstract

In this study, the electrochemical oxidation of acetaldehyde was investigated at activated massive DSA^® electrodes in acid medium, using differential electrochemical mass spectrometry (DEMS) and high-performance liquid chromatography (HPLC). The electrodes were prepared either by platinum electrodeposition or by depositing a highly nanodispersive-supported catalyst (Pt and Pt-Ni) over electrode surfaces with a Ti/Ru_0.3Ti_0.7O₂ nominal composition. Bulk electrolysis shows evidence of CO₂ and acetic acid formation. The electrocatalytic efficiency of the electrode material was also investigated as a function of the amount of catalyst added over the DSA^® electrode surface. The presence of RuO₂-active sites on the DSA ^® substrate plays an important role in the reaction overall efficiency. The addition of platinum to DSA^® enhances the oxidation of acetaldehyde to CO₂. The role of the substrate on the direct activation of acetaldehyde oxidation is discussed on the basis of the direct application of the metal nanoparticle catalyst over conductive oxide surface based on Magneli phase (mixture of Ti_nO_2n-1 and other phases) from Ebonex^®.

Original language	English
Pages (from-to)	2800-2808
Number of pages	9
Journal	Electrochimica Acta
Volume	51
Issue number	14
DOIs	https://doi.org/10.1016/j.electacta.2005.07.055
State	Published - 15 Mar 2006
Externally published	Yes

Keywords

Acetaldehyde
DEMS
Electrocatalytic oxidation
Oxide electrodes (DSA)
Platinum deposition

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10.1016/j.electacta.2005.07.055

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@article{27fd06fc73dd40dbb721cbc830a7abf8,

title = "Electrooxidation of acetaldehyde on platinum-modified Ti/Ru 0.3Ti0.7O2 electrodes",

abstract = "In this study, the electrochemical oxidation of acetaldehyde was investigated at activated massive DSA{\textregistered} electrodes in acid medium, using differential electrochemical mass spectrometry (DEMS) and high-performance liquid chromatography (HPLC). The electrodes were prepared either by platinum electrodeposition or by depositing a highly nanodispersive-supported catalyst (Pt and Pt-Ni) over electrode surfaces with a Ti/Ru0.3Ti0.7O2 nominal composition. Bulk electrolysis shows evidence of CO2 and acetic acid formation. The electrocatalytic efficiency of the electrode material was also investigated as a function of the amount of catalyst added over the DSA{\textregistered} electrode surface. The presence of RuO2-active sites on the DSA {\textregistered} substrate plays an important role in the reaction overall efficiency. The addition of platinum to DSA{\textregistered} enhances the oxidation of acetaldehyde to CO2. The role of the substrate on the direct activation of acetaldehyde oxidation is discussed on the basis of the direct application of the metal nanoparticle catalyst over conductive oxide surface based on Magneli phase (mixture of TinO2n-1 and other phases) from Ebonex{\textregistered}.",

keywords = "Acetaldehyde, DEMS, Electrocatalytic oxidation, Oxide electrodes (DSA), Platinum deposition",

author = "Forti, {J. C.} and A. Manzo-Robledo and Kokoh, {K. B.} and {De Andrade}, {A. R.} and N. Alonso-Vante",

note = "Funding Information: The financial support of this work by FAPESP (00/09428-3 and 01/10338-1) foundation is gratefully acknowledged. A. Manzo-Robledo thanks the CONACyT and the SEP-IPN Institutions for financial support. The authors thank Dr. Hui Yang for the assistance in the synthesis of the platinum and platinum-nickel nanoparticle catalyst.",

year = "2006",

month = mar,

day = "15",

doi = "10.1016/j.electacta.2005.07.055",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - Electrooxidation of acetaldehyde on platinum-modified Ti/Ru 0.3Ti0.7O2 electrodes

AU - Forti, J. C.

AU - Manzo-Robledo, A.

AU - Kokoh, K. B.

AU - De Andrade, A. R.

AU - Alonso-Vante, N.

N1 - Funding Information: The financial support of this work by FAPESP (00/09428-3 and 01/10338-1) foundation is gratefully acknowledged. A. Manzo-Robledo thanks the CONACyT and the SEP-IPN Institutions for financial support. The authors thank Dr. Hui Yang for the assistance in the synthesis of the platinum and platinum-nickel nanoparticle catalyst.

PY - 2006/3/15

Y1 - 2006/3/15

N2 - In this study, the electrochemical oxidation of acetaldehyde was investigated at activated massive DSA® electrodes in acid medium, using differential electrochemical mass spectrometry (DEMS) and high-performance liquid chromatography (HPLC). The electrodes were prepared either by platinum electrodeposition or by depositing a highly nanodispersive-supported catalyst (Pt and Pt-Ni) over electrode surfaces with a Ti/Ru0.3Ti0.7O2 nominal composition. Bulk electrolysis shows evidence of CO2 and acetic acid formation. The electrocatalytic efficiency of the electrode material was also investigated as a function of the amount of catalyst added over the DSA® electrode surface. The presence of RuO2-active sites on the DSA ® substrate plays an important role in the reaction overall efficiency. The addition of platinum to DSA® enhances the oxidation of acetaldehyde to CO2. The role of the substrate on the direct activation of acetaldehyde oxidation is discussed on the basis of the direct application of the metal nanoparticle catalyst over conductive oxide surface based on Magneli phase (mixture of TinO2n-1 and other phases) from Ebonex®.

AB - In this study, the electrochemical oxidation of acetaldehyde was investigated at activated massive DSA® electrodes in acid medium, using differential electrochemical mass spectrometry (DEMS) and high-performance liquid chromatography (HPLC). The electrodes were prepared either by platinum electrodeposition or by depositing a highly nanodispersive-supported catalyst (Pt and Pt-Ni) over electrode surfaces with a Ti/Ru0.3Ti0.7O2 nominal composition. Bulk electrolysis shows evidence of CO2 and acetic acid formation. The electrocatalytic efficiency of the electrode material was also investigated as a function of the amount of catalyst added over the DSA® electrode surface. The presence of RuO2-active sites on the DSA ® substrate plays an important role in the reaction overall efficiency. The addition of platinum to DSA® enhances the oxidation of acetaldehyde to CO2. The role of the substrate on the direct activation of acetaldehyde oxidation is discussed on the basis of the direct application of the metal nanoparticle catalyst over conductive oxide surface based on Magneli phase (mixture of TinO2n-1 and other phases) from Ebonex®.

KW - Acetaldehyde

KW - DEMS

KW - Electrocatalytic oxidation

KW - Oxide electrodes (DSA)

KW - Platinum deposition

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U2 - 10.1016/j.electacta.2005.07.055

DO - 10.1016/j.electacta.2005.07.055

M3 - Artículo

SN - 0013-4686

VL - 51

SP - 2800

EP - 2808

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 14

ER -

Electrooxidation of acetaldehyde on platinum-modified Ti/Ru _0.3Ti_0.7O₂ electrodes

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Keywords

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