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Article Abstract
Metal nanoclusters (NCs) with atomically precise structures are desirable models for truly understanding their structure-property relationship. This study reports the synthesis and structural anatomy of a Ag NC protected solely by an alkynyl ligand, 2-(trifluoromethyl)phenylacetylene (2-CFPhC[triple bond, length as m-dash]CH), which features a -CF substituent at the position (-CF). 2-CFPhC[triple bond, length as m-dash]CH ligands are so exquisitely arranged on the surface of Ag that the steric hindrance caused by -CF is minimized but its function as a hydrogen-bond (H-bond) acceptor (H⋯F) is maximized. Such a rule also applies to inter-cluster interactions which define the stacking sequence of Ag NCs. When supported on carbon black, Ag NCs demonstrate desirable oxygen reduction activity with robust long-term durability and excellent methanol tolerance, outperforming the commercial Pt/C catalyst.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474724 | PMC |
| http://dx.doi.org/10.1039/d4sc04318a | DOI Listing |
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