Dr. Kotaro Sasaki, Dr. Hideo Naohara, Dr. Yun Cai, Dr. Yong Man Choi, Dr. Ping Liu, Dr. Miomir B. Vukmirovic, Dr. Jia X. Wang and Dr. Radoslav R. Adzic Core-Protected Platinum Monolayer Shell High-Stability Electrocatalysts for Fuel-Cell Cathodes Angewandte Chemie International Edition 49
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.
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