5 years ago

General Synthetic Route toward Highly Dispersed Metal Clusters Enabled by Poly(ionic liquid)s

General Synthetic Route toward Highly Dispersed Metal Clusters Enabled by Poly(ionic liquid)s
Markus Antonietti, Yan Lu, Zdravko Kochovski, Jiayin Yuan, Wei-Yi Zhang, Holm Kirmse, Jian-Ke Sun
The ability to synthesize a broad spectrum of metal clusters (MCs) with their size controllable on a subnanometer scale presents an enticing prospect for exploring nanosize-dependent properties. Here we report an innovative design of a capping agent from a polytriazolium poly(ionic liquid) (PIL) in a vesicular form in solution that allows for crafting a variety of MCs including transition metals, noble metals, and their bimetallic alloy with precisely controlled sizes (∼1 nm) and record-high catalytic performance. The ultrastrong stabilization power is a result of an unusual synergy between the conventional binding sites in the heterocyclic cations in PIL and an in situ generated polycarbene structure induced simultaneously to the reduction reaction.

Publisher URL: http://dx.doi.org/10.1021/jacs.7b03357

DOI: 10.1021/jacs.7b03357

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