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Membrane Electrode Assembly for Electrocatalytic CO Reduction: Principle and Application. | LitMetric

Membrane Electrode Assembly for Electrocatalytic CO Reduction: Principle and Application.

Angew Chem Int Ed Engl

State Key Laboratory of Catalysis, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, China.

Published: July 2023

AI Article Synopsis

  • Electrocatalytic CO reduction using membrane electrode assembly (MEA) systems shows potential for improved efficiency by directly delivering gaseous CO to the cathode without a liquid electrolyte.
  • This review discusses the principles of MEA for CO reduction, emphasizing gas diffusion electrodes, ion exchange membranes, and additional anode processes beyond water oxidation.
  • It also examines voltage distribution and losses in components, summarizes advancements in generating various reduced products and catalysts, and outlines future research challenges and opportunities.

Article Abstract

Electrocatalytic CO reduction reaction (CO RR) in membrane electrode assembly (MEA) systems is a promising technology. Gaseous CO can be directly transported to the cathode catalyst layer, leading to enhanced reaction rate. Meanwhile, there is no liquid electrolyte between the cathode and the anode, which can help to improve the energy efficiency of the whole system. The remarkable progress achieved recently points out the way to realize industrially relevant performance. In this review, we focus on the principles in MEA for CO RR, focusing on gas diffusion electrodes and ion exchange membranes. Furthermore, anode processes beyond the oxidation of water are considered. Besides, the voltage distribution is scrutinized to identify the specific losses related to the individual components. We also summarize the progress on the generation of different reduced products together with the corresponding catalysts. Finally, the challenges and opportunities are highlighted for future research.

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Source
http://dx.doi.org/10.1002/anie.202302789DOI Listing

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