Abstract
Proton exchange membrane fuel cells (PEMFCs) are lightweight, sustainable, and clean power sources that offer much promise for renewable energy applications. Nanostructured platinum (Pt) is the essential catalyst component to catalyze the oxygen reduction reaction (ORR) in PEMFCs. To address the Pt abundance issue and to enhance Pt catalysis, Pt is often alloyed with a transition metal (M) (M = Fe, Ni, Co, and so forth). Despite some impressive ORR activities demonstrated on MPt so far, the stabilization of M in the MPt alloy remains challenging in the oxidizing and acidic ORR condition. Here we report hard-magnet core/shell L1 0 -CoPt/Pt nanoparticles as a highly active and durable catalyst for the ORR in fuel cells. Its catalytic performance surpasses the activity and durability targets set by the US Department of Energy. L1 0 -CoPt/Pt is a practical catalyst for use in PEMFCs. © 2018 Elsevier Inc.
Original language | English |
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Pages (from-to) | 124-135 |
Journal | Joule |
Volume | 3 |
Issue number | 1 |
DOIs | |
Publication status | Published - 16 Jan 2019 |
Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- atomically thin Pt shell
- hard magnet
- intermetallic
- L1 0 -CoPt
- meeting DOE 2020 targets on activity and durability of catalyst
- nanoparticles
- oxygen reduction reaction catalysis
- proton exchange membrane fuel cell
- stabilizing non-precious metal in acidic condition