This work was carried out at Brookhaven National Laboratory under contract no. DE-AC02-98CH10886, with the U.S. Department of Energy, Office of Science, and supported by its Division of Chemical Sciences, Geosciences, and Biosciences, and its Division of Materials Sciences and Engineering, within the Office of Basic Energy Sciences, and Toyota Motor Corporation. We thank the National Energy Research Scientific Computing (NERSC) Center, the Center for Functional Nanomaterials at Brookhaven National Laboratory, and Prof. M. C. Lin for CPU time. Work at the NSLS was supported by the DOE BES grant DE-FG02-03ER15688. We thank Hugh Isaacs and Radoslav Atanasoski for stimulating discussions.
Core-Protected Platinum Monolayer Shell High-Stability Electrocatalysts for Fuel-Cell Cathodes†
Article first published online: 7 OCT 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 49, Issue 46, pages 8602–8607, November 8, 2010
How to Cite
Sasaki, K., Naohara, H., Cai, Y., Choi, Y. M., Liu, P., Vukmirovic, M. B., Wang, J. X. and Adzic, R. R. (2010), Core-Protected Platinum Monolayer Shell High-Stability Electrocatalysts for Fuel-Cell Cathodes. Angew. Chem. Int. Ed., 49: 8602–8607. doi: 10.1002/anie.201004287
- Issue published online: 3 NOV 2010
- Article first published online: 7 OCT 2010
- Manuscript Received: 14 JUL 2010
- U.S. Department of Energy. Grant Number: DE-AC02-98CH10886
- Toyota Motor Corporation. Grant Number: DE-FG02-03ER15688
- core/shell particles;
- fuel cells;
More than skin deep: Platinum monolayers can act as shells for palladium nanoparticles to lead to electrocatalysts with high activities and an ultralow platinum content, but high platinum utilization. The stability derives from the core protecting the shell from dissolution. In fuel-cell tests, no loss of platinum was observed in 200 000 potential cycles, whereas loss of palladium was significant.