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Core–Shell Synthesis of a Novel, Spherical, Mesoporous Silica/Platinum Nanocomposite: Pt/PVP@MCM‐41
Author(s) -
Lin K.J.,
Chen L.J.,
Prasad M. R.,
Cheng C.Y.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400349
Subject(s) - materials science , nanocomposite , calcination , mesoporous material , nanoparticle , platinum , catalysis , platinum nanoparticles , chemical engineering , mesoporous silica , pulmonary surfactant , nanotechnology , organic chemistry , chemistry , engineering
A spherical, disordered, wormhole‐like nanocomposite, consisting of 115 nm diameter MCM‐41 particles containing 3 nm diameter Pt nanoparticles (see Figure), is described. A surfactant that stabilizes and prevents aggregation of the Pt nanoparticles during synthesis is removed by calcination, resulting in a high Pt catalytic surface area. Multiple cycles of cinnamic acid hydrogenation at room temperature demonstrate the potential of this reusable catalytic nanocomposite.