Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Nov 17:e13104.
doi: 10.1002/anie.202513104. Online ahead of print.

Integrating Sorbents in CO2 Electroreduction: A Model System to Disentangle Layer Contributions in Membrane Electrode Assemblies

Marieke van Leeuwen  1   2   3 , Martijn J W Blom  2   3 , Sukhvinder Singh  2   3 , Alan C West  4 , Philippe M Vereecken  1   2   3
Affiliations

Integrating Sorbents in CO2 Electroreduction: A Model System to Disentangle Layer Contributions in Membrane Electrode Assemblies

Marieke van Leeuwen et al. Angew Chem Int Ed Engl. .

Abstract

Membrane electrode assemblies (MEAs) are crucial in high-performance CO2 electrolysis, reducing iR losses and overcoming low solubility issues by supplying CO2 in the gas form. However, liquid anolyte permeation to the cathode causes salt precipitation, stability issues, and parasitic H2 evolution, hindering industrial implementation. Full gas-phase operation could mitigate these problems, but a model system to study gas-phase concepts is lacking. This study presents a planar bimetallic interdigitated electrode array (BIDEA) as a model system, using a sorbent electrolyte for CO2 electroreduction as a case study. The simplified system, combined with numerical models, reveals key process limitations, such as diffusion over the material and the role of sorption kinetics in limiting CO2 supply to the cathode. Spectroscopic analysis provided mechanistic insights, demonstrating the model system's applicability to disentangle layer effects in integrated systems.

Keywords: CO2 electroreduction; Integrated carbon capture and utilization; Ionogel; Membrane electrode assemblies; model system.

PubMed Disclaimer

References

    1. United Nations (2025), 1.5oc: what it means and why it matters, https://www.un.org/en/climatechange/science/climate‐issues/degrees‐matter, Accessed: 19/03/2025.
    1. United Nations (2023), Global issues: Population, https://www.un.org/en/global‐issues/population, Accessed: 19/03/2025.
    1. C. Beuttler, L. Charles, J. Wurzbacher, Front. Climate 2019, 1, 10.
    1. X. Zhang, S.‐X. Guo, K. A. Gandionco, A. M. Bond, J. Zhang, Mater. Today Adv. 2020, 7, 100074.
    1. A. F. Staerz, M. van Leeuwen, T. Priamushko, T. Saatkamp, B. Endrődi, N. Plankensteiner, M. Jobbagy, S. Pahlavan, M. J. Blom, C. Janáky, S. Cherevko, P. M. Vereecken, Angew. Chem. Int. Ed. 2024, 63, e202306503.

LinkOut - more resources