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A refined and reliable synthesis procedure for Au/TS-1(Si/Ti molar ratio ∼100) with high reaction rate for the direct gas phase epoxidation of propylene has been developed by studying the effects of pH of the gold slurry solution, mixing time, and preparation temperature for deposition precipitation (DP) of Au on TS-1 supports. Au/TS-1 catalysts prepared at optimal DP conditions (pH∼7.3, mixing for...
Nano gold particles supported on titanium silicalite-1 catalysts (Au/TS-1) have shown high propylene oxide (PO) rate (∼160gPOh-1kgCat-1) at ∼200°C and 1atm for gas-phase epoxidation of propylene in the presence of hydrogen and oxygen. In this work, we address the issue of whether gold clusters inside TS-1 can be the active sites for the PO reaction. Coating TS-1 seeds with silicalite-1 produced a...
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