Iwanow, Melanie and Vieira, Luciana and Rud, Igor and Seidler, Johannes and Kaiser, Manuela and Van Opdenbosch, Daniel and Zollfrank, Cordt and Richter, Michael and Gaertner, Tobias and Koenig, Burkhard and Sieber, Volker (2020) Pyrolysis of Deep Eutectic Solvents for the Preparation of Supported Copper Electrocatalysts. CHEMISTRYSELECT, 5 (38). pp. 11714-11720. ISSN 2365-6549,
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Electrochemical CO(2)reduction on Cu-based catalysts can form a variety of products including hydrocarbons, alcohols and formate, besides carbon monoxide and hydrogen. Compared to other electroactive metals, copper has a rather low cost and low toxicity. We have developed a novel method for catalyst preparation using deep eutectic solvents (DES), where the pyrolysis of a metal-containing DES leads to a material consisting of a metal embedded in a carbon support rich in oxygen and nitrogen functional groups (CNO). We focus on the preparation of copper-based materials as catalysts for the electrochemical CO(2)reduction. Depending on the nature of DES, the properties of the carbon support can be changed. The electrochemical activity of the materials was correlated with the preparation parameters such as variation of DESs, copper precursor and/or pyrolysis temperature. These Cu/CNO copper catalysts showed formate formation rates up to 85.5 mu mol h(-1) cm(-2)at 1.5 Vvs. Ag/AgCl.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROCHEMICAL CO2 REDUCTION; CARBON-DIOXIDE; FORMIC-ACID; CATALYSTS; ELECTROREDUCTION; TEMPERATURE; SELECTIVITY; ELECTRODES; CAPTURE; HYDROCARBONS; catalyst preparation method; copper; deep eutectic solvents; electrochemistry; pyrolysis |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Mar 2021 06:07 |
| Last Modified: | 09 Mar 2021 06:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43557 |
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