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April 27, 2026ACS Sustainable Chemistry & Engineering

Effects of Elevated Temperatures and Catalyst Layer Morphology on the Carbon Balance during Electrochemical CO Reduction

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Authors

ARAlana RossenFGFilipe GusmãoNDNick Daems

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Overview

Randomized trial evaluates temperature impact on carbon efficiency in electrochemical CO reduction, suggesting design improvements.

Key Points

  • This research aims to assess how temperature and catalyst layer morphology affect the carbon balance during electrochemical CO reduction.
  • Evaluated temperature range of 25–85 °C in CO reduction experiments.
  • Used various copper-based catalyst layers and cell configurations including flow-by and anion exchange zero-gap membrane cell.
  • Tested current densities up to 400 mA cm–2 and processing conditions like anolyte concentration.
  • At low current density (−50 mA cm–2), product selectivity remains unchanged with temperature variations.
  • Elevated temperatures reduce product crossover to the anolyte, enhancing net carbon efficiency.
  • Spray-coated Cu/PTFE electrodes mitigate performance issues like flooding at higher current densities.

Cite This Study

Rossen et al. (2026) studied this question.

synapsesocial.com/papers/69eefd64fede9185760d41ddhttps://doi.org/10.1021/acssuschemeng.5c13437
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