AI Article Synopsis
- The study explores the distinct catalytic capabilities of bimetallic Au/Pd alloy nanoclusters for Ullmann coupling of chloroarenes in water at lower temperatures.
- Monometallic gold (Au) and palladium (Pd) nanoclusters, as well as their mixtures, are unable to achieve the same reaction efficiently.
- Quantum chemical calculations reveal that the key factor behind the superior activity of the Au/Pd alloy is the ability to dissociatively chemisorb ArCl, which does not happen with just Au or Pd nanoclusters.
Article Abstract
This paper describes the unique catalytic activity of bimetallic Au/Pd alloy nanoclusters (NCs) for Ullmann coupling of chloroarenes in aqueous media at low temperature. The corresponding reaction cannot be achieved by monometallic Au and Pd NCs as well as their physical mixtures. On the basis of quantum chemical calculation, it was found that the crucial step to govern the unusual catalytic activity of Au/Pd is the dissociative chemisorption of ArCl, which is unlikely in the monometallic Au and Pd NCs.
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| http://dx.doi.org/10.1021/ja309606k | DOI Listing |
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