Journal
CHEMICAL SOCIETY REVIEWS
Volume 41, Issue 24, Pages 8035-8049Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cs35173k
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Funding
- NSF (DMR) [0804088, 1215034]
- DOE from University of Delaware [DE-FG02-03 ER15468]
- Georgia Institute of Technology
- Zhejiang University
- China Scholarship Council (CSC)
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Bimetallic nanocrystals consisting of two distinct metals such as Pd and Pt are attractive for a wide variety of catalytic and electrocatalytic applications as they can exhibit not only a combination of the properties associated with both metals but also enhancement or synergy due to a strong coupling between the two metals. With Pd as the base metal, many methods have recently been demonstrated for the synthesis of Pd-Pt bimetallic nanocrystals having a wide variety of different structures in the form of alloys, dendrites, core-shells, multi-shells, and monolayers. In this tutorial review, we begin with a brief discussion on the possible structures of Pd-Pt bimetallic nanocrystals, followed by an account of recent progress on synthetic approaches to such nanocrystals with controlled structures, shapes and sizes. In addition to the experimental procedures and mechanistic studies, a number of examples are presented to highlight the use of such bimetallic nanocrystals as catalysts or electrocatalysts for various applications with enhanced performance relative to their monometallic counterparts.
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