نتایج جستجو برای: catalytic applications

تعداد نتایج: 684899  

Journal: :iranian journal of catalysis 0
seyed reza azimi pirsaraei department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. hasan asilian mahabadi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. ahmad jonidi jafari research center for environmental health technology, iran university of medical sciences, p.o box: 14665-354, tehran, iran.

the catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. the catalyst was prepared by the wet impregnation method and characterized by using the brunauer emmett teller (bet), field emission scanning electron microscopy (fesem), x-ray diffraction (xrd), x-ray fluorescence (xrf) and temperature-programmed reduction (tpr) analysis. the highest catalytic ...

Journal: :European Journal of Organic Chemistry 2021

The title compound, characterized by X-ray crystallography, was accessed in 4 steps with 92 % ee. and 25 yield from an O-protected (R)-BINOL precursor. This revised synthetic route relied on a chlorosulfonylation reaction, as shortcut to previously developed sequence requiring the use of toxic SO2 gas bromine. strongly electron-impoverished (R)-6,6′-Tf2-BINOL proved effective ligand metal-catal...

Journal: :Small 2021

A heterogeneous catalyst is a backbone of modern sustainable green industries; and understanding the relationship between its structure properties key for advancement. Recently, many upscaling synthesis strategies development variety respectable control atomically precise catalysts are reported explored various important applications in catalysis energy environmental remediation. Precise atomic...

Journal: :Magnetochemistry 2023

Catalysts play a critical role in producing most industrial chemicals and are essential to environmental remediation. Under the demands of sustainable development, environment protection, cost-related factors, it has been suggested that catalysts sufficiently separable conveniently recyclable catalysis process. Magnetite (Fe3O4) nanomaterials provide possible way achieve this goal, due their ma...

Journal: :Lubricants 2023

Perfluoropolyethers (PFPE) are a class of frequently used lubricants in space applications due to their high stability under demanding conditions. However, they susceptible aging, with the aging mechanism being dependent on specific material combination and storage condition. A Lewis-acid-induced thermo-catalytic degradation is concern, for example, steel-on-steel sliding contact, can be releva...

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