Polymer Beads Decorated with Dendritic Systems as Supports for A3 Coupling Catalysts
نویسندگان
چکیده
منابع مشابه
Polysiloxanes as supports for catalysts
Introduction Immobilization (heterogenization) of catalysts aims to obtain catalysts which combine the advantages of homogeneous catalysts (high activity, selectivity) and heterogeneous ones (stability, ease of separation from the reaction medium and the possibility of re-use in subsequent reaction cycles). One of the most promising directions of research in this field is the use of polymers as...
متن کاملCore–shell titanium dioxide /carbon nanofibers decorated nickel nanoparticles as supports for electrocatalytic oxidation of ethanol
Abstract Recently alcohol fuel cells has been increased consideration because of their environmental friendliness, high energy conversion efficiency and low emissions. Many effort have been made to improve the electro-oxidation performance of alcohols such as methanol, ethanol and propanol. In this work, a new method for ethanol oxidation based on core–shell titanium dioxide / carbon nanofib...
متن کاملPreparation of Ag2S Nanoparticles and using as Catalyst for the A3-coupling (Aldehyde-Amine-Alkyne) Reaction
Microwave assisted facile one-step approach was adopted to prepare mono-dispersed silver sulfide nanoparticles. The structures of the synthesized Ag2S nanoparticles were confirmed by Fourier-transform infrared spectroscopy (FT-IR), diffuse reflectance UV-vis spectroscopy (DRS), X-ray diffractometer (XRD), energy dispersive X-ray analysis (EDX) and transmission electron microscope (TEM). The pre...
متن کاملMorphology control of clay-mineral particles as supports for metallocene catalysts in propylene polymerization
Spray dry granulation of clay minerals was studied to obtain clay mineral base support material for metallocene supported olefin polymerization catalysts. The morphology of the granules was strongly influenced by the nature of the clay mineral itself. Because of swelling characteristics of montmorillonite, its water dispersion was highly viscous even in the low slurry concentration (< 4 wt %). ...
متن کاملOptical Addressing of Polymer Beads for Chip-Based Systems
Conventional methods that emerged from microelectronics are now used for fabrication of labon-a-chip devices for applications in chemical and biological studies. Sample localization and arraying within these devices are desired for high throughput screening applications. We developed a novel optical addressing scheme in an electrochemical system to localize polymer beads (0.8-10 μm in diameter)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Catalysis Letters
سال: 2020
ISSN: 1011-372X,1572-879X
DOI: 10.1007/s10562-020-03301-0