Surface‐Functionalized Nanoporous Catalysts towards Biofuel Applications

Chen, Hung‐Ting; Trewyn, Brian G.; Lin, Victor S.‐Y.

doi:10.1002/9783527629299.ch12

Cited by 1 publication

(1 citation statement)

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“…In this work, we report that, by using mesoporous silica nanoparticles (MSNs) to immobilize molecular Pt complexes, we can achieve an efficient catalytic oxidation of norbornene by dioxygen using (dpms)Pt II -MSN materials . Some of the resulting Pt II catalysts demonstrate high catalytic activity in the aerobic oxidation of norbornene with turnovers (TOs) of >40 000.…”

Section: Introductionmentioning

confidence: 99%

Aerobic Epoxidation of Olefin by Platinum Catalysts Supported on Mesoporous Silica Nanoparticles

et al. 2016

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We report platinum catalysts for the efficient aerobic oxidation of olefins to form epoxides and/or derived glycol monoethers. The catalystsdiaqua and dichloro Pt II complexes supported by the ligand di(2-pyridine)methanesulfonate (dpms)are most active when they are covalently tethered to mesoporous silica nanoparticles (MSNs). Supporting the molecular Pt complexes on the MSNs prevents bimolecular catalyst deactivation. Using this strategy, >40 000 turnovers are achieved for the aerobic oxidation of norbornene in 2,2,2-trifluoroethanol. The position of the tether and the nature of other ligands in the metal coordination sphere (aqua, hydroxo, or chloro) are shown to affect the catalyst activity. The new MSN-supported Pt materials were characterized by nuclear magnetic resonance (NMR) spectroscopy, nitrogen physisorption, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA).

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Section: Introductionmentioning

confidence: 99%