Palladium-based electrodes: A way to reduce platinum content in polymer electrolyte membrane fuel cells
✍ Scribed by Ermete Antolini; Sabrina C. Zignani; Sydney F. Santos; Ernesto R. Gonzalez
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 955 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0013-4686
No coin nor oath required. For personal study only.
✦ Synopsis
To decrease the Pt content, a polymer electrolyte membrane fuel cell (PEMFC) was formed using a carbon supported Pd 96 Pt 4 catalyst as the anode material, and a carbon supported Pd 49 Pt 47 Co 4 catalyst as the cathode material. The as-obtained Pd-based PEMFC with an overall Pd:Pt:Co atomic composition of electrodes (anode + cathode) = 72:26:2 exhibited a performance not too far from that of the fuel cell with the conventional 100% Pt electrodes. With a Pt content of 35 wt% of that of the cell with full Pt electrodes, at a current density of 1 A cm -2 the performance loss of the cell with the Pd-based catalysts was only 11%, with 6% ascribed to the anode catalyst and 5% to the cathode catalyst. The maximum power density of the Pd-based cell was 76% of that of the cell with Pt catalysts.