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Bimetallic Electrocatalysts for Carbon Dioxide Reduction

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Electrochemical reduction of carbon dioxide, using the electricity generated from renewable energy sources, has the potential of rendering a carbon-neutral energy economy. Developing selective, efficient and robust electrocatalysts is the key step towards establishing this promising technology. While different nanostructures of Cu have been extensively studied for the formation of C1–C3 alcohols and hydrocarbons, Cu-based bimetallic catalysts showed better activity compared to monometallic Cu. In this review, we will first summarize recent advances in designing Cu-X bimetallic catalysts. We categorized the bimetallic catalysts into different groups based on the CO2 reduction activities of the ' X ' metal, including hydrogen-producing metals, formate-producing metals and CO-producing metals. The key factors in determining the selectivity are discussed. Additionally, representative examples of Cu-free bimetallic catalysts, with appreciable selectivity towards hydrocarbons/alcohols, will also be presented. We will conclude this review with challenges and promising research directions.
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Keywords: BIMETALLIC CATALYST; CARBON DIOXIDE; COPPER; ETHYLENE

Document Type: Research Article

Affiliations: 1: Laboratory of Photonics and Interfaces, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne 2: Laboratory of Photonics and Interfaces, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne;, Email: [email protected]

Publication date: November 1, 2019

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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