Reference of 2568-25-4, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 2568-25-4, Name is Benzaldehyde Propylene Glycol Acetal, SMILES is CC1OC(C2=CC=CC=C2)OC1, belongs to copper-catalyst compound. In a article, author is In-noi, Orrasa, introduce new discover of the category.
Insight into Fructose Dehydration over Lewis Acid alpha-Cu2P2O7 Catalyst
Key information on direct conversion of fructose into 5-hydroxymethylfurfural (5-HMF) over Lewis acid sites was investigated by combining experimental and computational studies. A series of alpha-copper pyrophosphate (alpha-Cu2P2O7) was synthesized and used as a heterogeneous catalyst model for bifunctional acid-catalyzed fructose dehydration under hot compressed water at mild temperature. Structural and phase transformations of the catalyst samples were systematically characterized by in situ X-ray absorption spectroscopy (in situ XAS), X-ray powder diffraction (XRD) and Transmission electron microscopy (TEM). The type of acidic site was verified by in situ pyridine-adsorbed Fourier-transform infrared spectroscopy (in situ Py-FTIR). Results revealed that calcination temperature greatly impacted microstructure, acid strength, and activity of the alpha-Cu2P2O7 catalysts. Lewis acid sites showed the main activity on alpha-Cu2P2O7 catalyst surfaces. Catalytic performance was strongly dependent on reaction temperature and reaction time. Under optimal reaction condition, the calcined sample at 900 degrees C exhibited the best catalytic performance with 5-HMF production yield of 42.0%. Results from density functional theory (DFT) revealed that fructose dehydration over alpha-Cu2P2O7 catalyst was enhanced by increasing reaction thermodynamics via Lewis acid sites.
Reference of 2568-25-4, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 2568-25-4 is helpful to your research.
Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”