Abstract
In this paper, we review our development activities of ultrathin film (UTF) PtNi and PtNilr oxygen reduction reaction electrocatalysts on 3M Nanostructured Thin Film supports. Significant improvements in electrocatalyst mass and specific activities have been achieved through optimization of electrocatalyst bulk and surface compositions and structures. The compositional and structural factors influencing catalyst activity were investigated by high resolution electron microscopy and x-ray adsorption spectroscopy, and modeled by density functional theory. Membrane electrode assemblies which incorporate UTF PtNi and PtNilr cathode catalysts have demonstrated performance and durability which approach or exceed several U.S. Department of Energy 2020 performance, durability, and platinum group metal content targets.
Original language | English |
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Title of host publication | ECS Transactions |
Editors | D. J. Jones, F. Buechi, K. E. Swider-Lyons, P. N. Pintauro, H. Uchida, T. J. Schmidt, B. S. Pivovar, H. A. Gasteiger, A. Z. Weber, P. A. Shirvanian, J. M. Fenton, T. F. Fuller, K. Shinohara, K. A. Perry, P. Strasser, C. Coutanceau, S. Mitsushima, R. A. Mantz, S. Narayan, V. Ramani, K. E. Ayers, Y.-T. Kim, H. Xu |
Publisher | Electrochemical Society Inc. |
Pages | 659-676 |
Number of pages | 18 |
Edition | 8 |
ISBN (Electronic) | 9781607688259 |
ISBN (Print) | 9781623324773 |
DOIs | |
State | Published - 2017 |
Event | Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting - National Harbor, United States Duration: Oct 1 2017 → Oct 5 2017 |
Publication series
Name | ECS Transactions |
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Number | 8 |
Volume | 80 |
ISSN (Print) | 1938-6737 |
ISSN (Electronic) | 1938-5862 |
Conference
Conference | Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting |
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Country/Territory | United States |
City | National Harbor |
Period | 10/1/17 → 10/5/17 |
Funding
We acknowledge the U.S. Department of Energy, which provided funding for this work under grant DE-EE0007270. We thank Jason Bender, Michael Stephens, Siwei Leng, and Myles Brostrom (3M Corporate Research Analytical Laboratory) and James Phipps and Gregg Wheeler (3M Corporate Process Laboratory) for their exceptional work in characterization and fabrication of the experimental catalysts. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.