Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 14, Pages 5387-5394Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201406400
Keywords
formic acid oxidation; Pd nanocrystals polyoxometalates; shape control; Suzuki coupling reaction
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2010-0029149, 2008-0061892]
- Institute for Basic Science (IBS) [IBS-R004-D1]
- National Research Foundation of Korea [2010-0029149, 2008-0061892] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Polyoxometalates (POMs), as inorganic ligands, can endow metal nanocrystals (NCs) with unique reactivities on account of their characteristic redox properties. In the present work, we present a facile POM-mediated one-pot aqueous synthesis method for the production of single-crystalline Pd NCs with controlled shapes and sizes. The POMs could function as both reducing and stabilizing agents in the formation of NCs, and thus gave a fine control over the nucleation and growth kinetics of NCs. The prepared POM- stabilized Pd NCs exhibited excellent catalytic activity and stability for electrocatalytic (formic acid oxidation) and catalytic (Suzuki coupling) reactions compared to Pd NCs prepared without the POMs. This shows that the POMs play a pivotal role in determining the catalytic performance, as well as the growth, of NCs. We envision that the present approach can offer a convenient way to develop efficient NC-based catalyst systems.
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