SCHEDULED MAINTENANCE
Rationally synthesized five-fold twinned core–shell Pt3Ni@Rh nanopentagons, nanostars and nanopaddlewheels for selective reduction of a phenyl ring of phthalimide†
Abstract
Surface-energy fine-tuned five-fold twinned nanostructures with a core–shell Pt3Ni@Rh structural motif, namely, a core–shell Pt3Ni@Rh pentagon, a core–shell Pt3Ni@Rh starfish, and a paddlewheel with a Pt3Ni crankshaft and two Rh five-fold starfish wheels, are prepared by rationally designed stepwise heteroepitaxial growth. Unusual selective hydrogenation of the phenyl ring in phthalimide is accomplished with moderately active core–shell Pt3Ni@Rh pentagons and starfish-like nanoparticles. The most active paddlewheel structure proceeds to further reduce one carbonyl group, indicating the sequential nature of phthalimide reduction by Rh nanoparticle catalysis.
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