Abstract
The series of electrodes were fabricated by the scalable and manufacturable slot-die coating method for proton exchange membrane fuel cell (PEMFC) application. The inks with different amounts of solids were studied by rheological methods in order to establish a coating window with minimum manufacturing defects. The obtained electrodes were characterized by SEM, AFM, and optical microscopy, which showed that they were uniform and homogeneous with minimum defects. The electrochemical evaluation of the manufactured gas diffusion electrodes (GDE) showed that the main characteristics of the electrodes, like electrochemical surface area, proton resistivity, and double layer capacitance, were found to be close for all samples confirming the reproducibility of the slot-die process. Additionally, we studied the effects of membrane thickness on the performance of the GDE membrane electrode assemblies and determined that a decrease in membrane thickness favored the performance. The obtained results clearly demonstrated the applicability and feasibility of the approach for the Manufacturing of catalyst layers for the fuel cell application with potential for future mass production.
Original language | English |
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Pages (from-to) | 35838-35850 |
Number of pages | 13 |
Journal | International Journal of Hydrogen Energy |
Volume | 47 |
Issue number | 84 |
DOIs | |
State | Published - Oct 5 2022 |
Funding
This research at Oak Ridge National Laboratory , managed by UT Battelle LLC, for the US Department of Energy ( DOE ) under contract DE-AC05-00OR22725 , was sponsored by the DOE Advanced Manufacturing Office (Program Manager: Brian Valentine). The SEM characterization was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. T. Reshetenko gratefully acknowledges funding from the US Office of Naval Research ( N00014-18-1-2127 , N00014-22-1-2045 ). Notice: This manuscript has been authored by UT-Battelle LLC under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript or allow others to do so, for the US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This research at Oak Ridge National Laboratory, managed by UT Battelle LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725, was sponsored by the DOE Advanced Manufacturing Office (Program Manager: Brian Valentine). The SEM characterization was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. T. Reshetenko gratefully acknowledges funding from the US Office of Naval Research (N00014-18-1-2127, N00014-22-1-2045).
Keywords
- Advanced manufacturing
- Cathode
- Fuel cell
- Oxygen reduction reaction
- Slot-die coating