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Siloxide precursors

Besides supported (transition) metal catalysts, structure sensitivity can also be observed with bare (oxidic) support materials, too. In 2003, Hinrichsen et al. [39] investigated methanol synthesis at 30 bar and 300 °C over differently prepared zinc oxides, namely by precipitation, coprecipitation with alumina, and thermolysis of zinc siloxide precursor. Particle sizes, as determined by N2 physisorpt-ion and XRD, varied from 261 nm for a commercial material to 7.0 nm for the thermolytically obtained material. Plotting the areal rates against BET surface areas (Figure 3) reveals enhanced activity for the low surface area zinc... [Pg.169]

A series of rhodium-modified heterogeneous materials has been prepared [36a] using the silicon oxides Aerosil 200 and SBA-15 and dinuclear rhodium(l) siloxide precursors [ Rh( x-OSiMe3)(cod) 2], [ Rh( x-OSiMe3)(nbd) 2], [ Rh( x-OSiMe3)(tfb) 2]... [Pg.297]

We reported very recently, the synthesis and characterization of the well-defined rhodium siloxide complex immobilized on silica obtained for the first time by direct reaction of molecular rhodium siloxide precursor with Aerosil (118). [Pg.1279]

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See also in sourсe #XX -- [ Pg.75 , Pg.76 , Pg.77 , Pg.78 , Pg.79 , Pg.80 , Pg.81 , Pg.82 , Pg.83 ]

See also in sourсe #XX -- [ Pg.75 , Pg.76 , Pg.77 , Pg.78 , Pg.79 , Pg.80 , Pg.81 , Pg.82 , Pg.83 ]



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Precursors siloxides

Siloxide

Siloxides

Thermolytic siloxide precursors

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