Green epoxidation of cyclooctene with molecular oxygen over an ecofriendly heterogeneous polyoxometalate-gold catalyst Au/BW11/Al2O3
نویسندگان
چکیده
منابع مشابه
Stable and solubilized active Au atom clusters for selective epoxidation of cis-cyclooctene with molecular oxygen
The ability of Au catalysts to effect the challenging task of utilizing molecular oxygen for the selective epoxidation of cyclooctene is fascinating. Although supported nanometre-size Au particles are poorly active, here we show that solubilized atomic Au clusters, present in ng ml-1 concentrations and stabilized by ligands derived from the oxidized hydrocarbon products, are active. They can be...
متن کاملErratum: Stable and solubilized active Au atom clusters for selective epoxidation of cis-cyclooctene with molecular oxygen
This corrects the article DOI: 10.1038/ncomms14881.
متن کاملSupporting Information Microspheres with an Au@SiO2 Core and Mesoporous Aluminosilica Shell as Superior Heterogeneous Catalyst for the Aerobic Epoxidation of cis-Cyclooctene
copper specimen grids (300 meshes) with formvar/carbon (Beijing XXBR Technology Co.) were employed as received without further purifications. Deionized (DI) water (resistance >18.2 MΩ • cm-1) was used in all of our experiments. Characterization: Nitrogen physisorption isotherms were measured at 77 K with a static volumetric instrument Autosorb-6b (Quanta Chrome). Prior to each measurement, the ...
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The epoxidation of alkenes was carried out over a CuO/Al(2)O(3) catalyst using cumene as an oxygen carrier, through a one-pot reaction, giving high conversion and selectivity with different substrates. Trans-β-methylstyrene gave the corresponding epoxide in 95% yield after 3 h.
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With the in situ generated H(2)O(2) tailored by the addition of p-tetrachlorobenzoquinone, the product can be effectively steered towards either HCOOH or the methanol derivative CF(3)COOCH(3) during the direct oxidation of methane with molecular oxygen over palladium catalyst.
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ژورنال
عنوان ژورنال: Journal of Zhejiang University-SCIENCE A
سال: 2016
ISSN: 1673-565X,1862-1775
DOI: 10.1631/jzus.a1500332