Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 11, Issue 16, Pages 2224-2239Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201600462
Keywords
electrochemistry; facets; fuel cells; nanostructures; noble metals
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Funding
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning (MSIP) [2015R1A3A2033469]
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Noble-metal nanocrystals (NCs) show excellent catalytic performance for many important electrocatalysis reactions. The crystallographic properties of the facets by which the NCs are bound, closely associated with the shape of the NCs, have a profound influence on the electrocatalytic function of the NCs. To develop an efficient strategy for the synthesis of NCs with controlled facets as well as compositions, understanding of the growth mechanism of the NCs and their interaction with the chemical species involved in NC synthesis is quite important. Furthermore, understanding the facet-dependent catalytic properties of noble-metal NCs and the corresponding mechanisms for various electrocatalysis reactions will allow for the rational design of robust electrocatalysts. In this review, we summarize recently developed synthesis strategies for the preparation of mono-and bimetallic noble-metal NCs by classifying them by the type of facets through which they are enclosed and discuss the electrocatalytic applications of noble-metal NCs with controlled facets, especially for reactions associated with fuel-cell applications, such as the oxygen reduction reaction and fuel (methanol, ethanol, and formic acid) oxidation reactions.
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