Electrophoretic Deposition of Carbon‐Ionomer Layers on Proton Conducting Membranes
Year: 2024
Type: article
Abstract: Synthetic and natural carbons are widely used as carrier for electrodes in electrochemical applications. They need to have a controlled morphology in order to facilitate mass and charge transport, so the process of film formation is of uttermost importance. Here we show, how carbons (after proper preconditioning) can be codeposited with an ionomer by electrophoretic deposition, a method that does allow full control of deposition conditions during the process. In view of potential applications, we focus on the direct deposition on proton‐conducting membranes. Ionomers and membranes applied are based on established per‐fluorinated polyethylene with SO3H‐terminated side chains (PFSA). Conditions for reproducible deposition are reported in terms of optimal charge on the carbon particles, field strength in the deposition cell and necessary deposition times for a given film thickness. Additionally, a horizontal cell arrangement is suggested to avoid gravitational effects.
Source: ChemPhysChem
Authors: Michael Bredol, Ivan Radev, Giulia Primavera, Thomas Lange, Adib Caidi, Volker Peinecke
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,330
OpenAlex ID: W4404110360