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A Pd/C‐CeO2 Anode Catalyst for High‐Performance Platinum‐Free Anion Exchange Membrane Fuel Cells |
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| Authors: | Dr. Hamish A. Miller Dr. Alessandro Lavacchi Dr. Francesco Vizza Dr. Marcello Marelli Dr. Francesco Di Benedetto Dr. Francesco D'Acapito Yair Paska Miles Page Dr. Dario R. Dekel |
| Affiliation: | 1. CNR-ICCOM, Firenze, Italy;2. CNR-ISTM, Milan, Italy;3. Department of Earth Sciences, Università di Firenze, Firenze, Italy;4. CNR-IOM-OGG c/o ESRF, Grenoble, Cédex 9, France;5. CellEra, Caesarea, Israel;6. The Wolfson Department of Chemical Engineering, Technion –, Israel Institute of Technology, Haifa, Israel |
| Abstract: | One of the biggest obstacles to the dissemination of fuel cells is their cost, a large part of which is due to platinum (Pt) electrocatalysts. Complete removal of Pt is a difficult if not impossible task for proton exchange membrane fuel cells (PEM‐FCs). The anion exchange membrane fuel cell (AEM‐FC) has long been proposed as a solution as non‐Pt metals may be employed. Despite this, few examples of Pt‐free AEM‐FCs have been demonstrated with modest power output. The main obstacle preventing the realization of a high power density Pt‐free AEM‐FC is sluggish hydrogen oxidation (HOR) kinetics of the anode catalyst. Here we describe a Pt‐free AEM‐FC that employs a mixed carbon‐CeO2 supported palladium (Pd) anode catalyst that exhibits enhanced kinetics for the HOR. AEM‐FC tests run on dry H2 and pure air show peak power densities of more than 500 mW cm?2. |
| Keywords: | alkaline membrane ceria fuel cells palladium platinum free electrodes |