4.4 Article

Pyrolysis of Deep Eutectic Solvents for the Preparation of Supported Copper Electrocatalysts

期刊

CHEMISTRYSELECT
卷 5, 期 38, 页码 11714-11720

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202003295

关键词

catalyst preparation method; copper; deep eutectic solvents; electrochemistry; pyrolysis

资金

  1. Bavarian Ministry of Economic Affairs and Media, Energy and Technology
  2. Center for Energy Storage

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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.

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