The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium
Copper–carbon composites were prepared following various different synthetic routes and using various carbon precursors (i.e., lignocellulose and graphite oxide), and were used as electrocatalysts for the oxidation of propargyl alcohol (PGA) in an alkaline medium. The electrochemical response of the...
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MDPI AG
2017-11-01
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| Online Access: | https://www.mdpi.com/2311-5629/3/4/36 |
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| author | Leticia García-Cruz Conchi O. Ania Ana Paula Carvalho Teresa J. Bandosz Vicente Montiel Jesús Iniesta |
| author_facet | Leticia García-Cruz Conchi O. Ania Ana Paula Carvalho Teresa J. Bandosz Vicente Montiel Jesús Iniesta |
| author_sort | Leticia García-Cruz |
| collection | DOAJ |
| description | Copper–carbon composites were prepared following various different synthetic routes and using various carbon precursors (i.e., lignocellulose and graphite oxide), and were used as electrocatalysts for the oxidation of propargyl alcohol (PGA) in an alkaline medium. The electrochemical response of the copper-based catalysts was analyzed in terms of the influence of the metallic species, the carbon matrix incorporated in the composites, and the chemical structure of the ionomers—Nafion and poly (4-vinylpyridine) cross-linked methyl chloride quaternary salt resin (4VP)—used in the fabrication of the electrodes. Data has shown that the incorporation of reduced graphene oxide sheets between the copper metallic particles increased the performance due to the increased conductivity provided by the carbonaceous phase. Catalytic inks with ca. 40 wt.% Nafion and 12 wt.% 4VP as ionomers provided the best electrochemical response and cohesion of the catalysts, minimizing the losses in the electroactivity of the copper species. |
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| issn | 2311-5629 |
| language | English |
| last_indexed | 2024-12-20T17:41:29Z |
| publishDate | 2017-11-01 |
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| spelling | doaj.art-9c2325d61d0940d49db7c96b01dd14852022-12-21T19:31:07ZengMDPI AGC2311-56292017-11-01343610.3390/c3040036c3040036The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline MediumLeticia García-Cruz0Conchi O. Ania1Ana Paula Carvalho2Teresa J. Bandosz3Vicente Montiel4Jesús Iniesta5Department of Physical Chemistry and Institute of Electrochemistry, University of Alicante, 03080 Alicante, SpainConditions Extrêmes et Matériaux, Haute Température et Irradiation (CEMHTI) UPR 3079, Le Centre National de la Recherche Scientifique (CNRS), Université d’Orléans, 45071 Orléans, FranceDepartamento de Quimica, Universidade de Lisboa, 1749-016 Lisboa, PortugalDepartment of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USADepartment of Physical Chemistry and Institute of Electrochemistry, University of Alicante, 03080 Alicante, SpainDepartment of Physical Chemistry and Institute of Electrochemistry, University of Alicante, 03080 Alicante, SpainCopper–carbon composites were prepared following various different synthetic routes and using various carbon precursors (i.e., lignocellulose and graphite oxide), and were used as electrocatalysts for the oxidation of propargyl alcohol (PGA) in an alkaline medium. The electrochemical response of the copper-based catalysts was analyzed in terms of the influence of the metallic species, the carbon matrix incorporated in the composites, and the chemical structure of the ionomers—Nafion and poly (4-vinylpyridine) cross-linked methyl chloride quaternary salt resin (4VP)—used in the fabrication of the electrodes. Data has shown that the incorporation of reduced graphene oxide sheets between the copper metallic particles increased the performance due to the increased conductivity provided by the carbonaceous phase. Catalytic inks with ca. 40 wt.% Nafion and 12 wt.% 4VP as ionomers provided the best electrochemical response and cohesion of the catalysts, minimizing the losses in the electroactivity of the copper species.https://www.mdpi.com/2311-5629/3/4/36copper-based electrocatalystscarbonaceous matrixreduced graphene oxidealkaline mediumalcohol electrooxidation |
| spellingShingle | Leticia García-Cruz Conchi O. Ania Ana Paula Carvalho Teresa J. Bandosz Vicente Montiel Jesús Iniesta The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium C copper-based electrocatalysts carbonaceous matrix reduced graphene oxide alkaline medium alcohol electrooxidation |
| title | The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium |
| title_full | The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium |
| title_fullStr | The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium |
| title_full_unstemmed | The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium |
| title_short | The Role of Carbon on Copper–Carbon Composites for the Electrooxidation of Alcohols in an Alkaline Medium |
| title_sort | role of carbon on copper carbon composites for the electrooxidation of alcohols in an alkaline medium |
| topic | copper-based electrocatalysts carbonaceous matrix reduced graphene oxide alkaline medium alcohol electrooxidation |
| url | https://www.mdpi.com/2311-5629/3/4/36 |
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