Suter, TAM;
Smith, K;
Hack, J;
Rasha, L;
Rana, Z;
Angel, GMA;
Shearing, PR;
... Brett, DJL; + view all
(2021)
Engineering Catalyst Layers for Next-Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods.
Advanced Energy Materials
10.1002/aenm.202101025.
(In press).
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Abstract
Polymer electrolyte fuel cells (PEFCs) are a promising replacement for the fossil fuel–dependent automotive and energy sectors. They have become increasingly commercialized in the last decade; however, significant limitations on durability and performance limit their commercial uptake. Catalyst layer (CL) design is commonly reported to impact device power density and durability; although, a consensus is rarely reached due to differences in testing conditions, experimental design, and types of data reported. This is further exacerbated by aspects of CL design such as catalyst support, proton conduction, catalyst, fabrication, and morphology, being significantly interdependent; hence, a wider appreciation is required in order to optimize performance, improve durability, and reduce costs. Here, the cutting-edge research within the field of PEFCs is reviewed, investigating the effect of different manufacturing techniques, electrolyte distribution, support materials, surface chemistries, and total porosity on power density and durability. These are critically appraised from an applied perspective to inform the most relevant and promising pathways to make and test commercially viable cells. This holistic view of the competing aspects of CL design and preparation will facilitate the development of optimized CLs, especially the incorporation of novel catalyst support materials.
| Type: | Article |
|---|---|
| Title: | Engineering Catalyst Layers for Next-Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/aenm.202101025 |
| Publisher version: | http://dx.doi.org/10.1002/aenm.202101025 |
| Language: | English |
| Additional information: | © 2021 The Authors. Advanced Energy Materials published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | catalyst layers, electrode structure, fuel cells, ionomer, manufacturing, nanomaterials, support materials, OXYGEN REDUCTION REACTION, PROTON-EXCHANGE MEMBRANES, ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY, NAFION AGGLOMERATE MORPHOLOGY, CONTACT PRESSURE DISTRIBUTION, MULTIWALLED CARBON NANOTUBES, GAS-DIFFUSION ELECTRODES, REDUCED GRAPHENE OXIDE, LONG-TERM PERFORMANCE, HIGH-CURRENT DENSITY |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10134264 |
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