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Angew Chem Int Ed Engl. 2013 Aug 12;52(33):8526-44. doi: 10.1002/anie.201207186. Epub 2013 Jun 14.

Tuning nanoparticle catalysis for the oxygen reduction reaction.

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Department of Chemistry, Brown University, Providence, RI 02912, USA.


Advances in chemical syntheses have led to the formation of various kinds of nanoparticles (NPs) with more rational control of size, shape, composition, structure and catalysis. This review highlights recent efforts in the development of Pt and non-Pt based NPs into advanced nanocatalysts for efficient oxygen reduction reaction (ORR) under fuel-cell reaction conditions. It first outlines the shape controlled synthesis of Pt NPs and their shape-dependent ORR. Then it summarizes the studies of alloy and core-shell NPs with controlled electronic (alloying) and strain (geometric) effects for tuning ORR catalysis. It further provides a brief overview of ORR catalytic enhancement with Pt-based NPs supported on graphene and coated with an ionic liquid. The review finally introduces some non-Pt NPs as a new generation of catalysts for ORR. The reported new syntheses with NP parameter-tuning capability should pave the way for future development of highly efficient catalysts for applications in fuel cells, metal-air batteries, and even in other important chemical reactions.


alloys; core-shell nanoparticles; fuel cells; oxygen reduction reaction; platinum


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