期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 122, 期 5, 页码 2712-2716出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b10974
关键词
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资金
- National Science Foundation [CHE-1534177, CHE-1505135, CHE-1534630]
- Welch Foundation [F-0032, F-1738, F-1841]
- Office of Basic Energy Sciences of the US Department of Energy [DE-AC02-05CH11231]
- Division Of Chemistry [1505135] Funding Source: National Science Foundation
The catalytic properties of bulk-immiscible alloys are less explored than their bulk-miscible counterparts due to inherent difficulties in their synthesis and stabilization. The development of alternative synthetic methods can, however, provide routes toward bulk-immiscible nanoparticles with metastable randomly alloyed structures. In this study, we combine computational screening and a microwave-based synthesis method to target bulk-immiscible alloys that show enhanced reactivity over pure metals for the oxygen reduction reaction (ORR). A number of systems are identified theoretically as promising ORR catalysts. The theoretical predictions are experimentally verified for the RhAu system, for which a specific surface ensemble is identified as being highly active in the ORR
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