4.8 Article

High carbonate ion conductance of a robust PiperION membrane allows industrial current density and conversion in a zero-gap carbon dioxide electrolyzer cell

Journal

ENERGY & ENVIRONMENTAL SCIENCE
Volume 13, Issue 11, Pages 4098-4105

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ee02589e

Keywords

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Funding

  1. European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [716539]
  2. National Research, Development and Innovation Office (NKFIH) [FK-132564]
  3. Szechenyi 2020 program [GINOP-2.2.1-15-2017-00041]
  4. U.S Department of Energy, Advanced Research Projects Agency-Energy [DE-AR0001149]

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A poly(aryl piperidinium)-based anion exchange membrane (PiperION) with high carbonate conductance is employed for CO2 electrolysis to CO in conjunction with a tailored electrolyzer cell structure. This combination results in unprecedentedly high partial current densities in zero-gap cells (j(CO) > 1.0 A cm(-2)), while maintaining high conversion (20-45%), selectivity (up to 90%) and low cell voltage (2.6-3.4 V).

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