Ligand-Free Platinum Nanoparticles Encapsulated in a Hollow Porous Carbon Shell as a Highly Active Heterogeneous Hydrogenation Catalyst


  • This research was partially supported by a Grant-in-Aid for Young Scientists (A) (grant no. 16685020) from the Ministry of Education, Culture, Sports, Science and Technology, and the Iketani Science and Technology Foundation.


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Wrapped up but still active: A platinum nanoparticle that is 2.2 nm in diameter and not coated by any stabilizing agent can be encapsulated in a hollow carbon shell 30–40 nm in diameter with a micro- to nanoporous wall structure (see picture). This encapsulated nanoparticle acts as an efficient and recyclable heterogeneous catalyst for various liquid-phase hydrogenation reactions.