Non-invasive current collectors for improved current-density distribution during CO₂ electrolysis on super-hydrophobic electrodes.

ABSTRACT: Electrochemical reduction of CO₂ presents an attractive way to store renewable energy in chemical bonds in a potentially carbon-neutral way. However, the available electrolyzers suffer from intrinsic problems, like flooding and salt accumulation, that must be overcome to industrialize the technology. To mitigate flooding and salt precipitation issues, researchers have used super-hydrophobic electrodes based on either expanded polytetrafluoroethylene (ePTFE) gas-diffusion layers (GDL's), or carbon-based GDL's with added PTFE. While the PTFE backbone is highly resistant to flooding, the non-conductive nature of PTFE means that without additional current collection the catalyst layer itself is responsible for electron-dispersion, which penalizes system efficiency and stability. In

SUBMITTER: Iglesias van Montfort HP 

PROVIDER: S-EPMC10584973 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature