منابع مشابه
High Performance Nanocomposite Cation Exchange Membrane: Effects of Functionalized Silica-Coated Magnetic Nanoparticles
Nanocomposite cation exchange membranes (CEMs) were prepared by adding various amounts of functionalized silica-coated magnetite nanoparticles to the sulfonated polyethersulfone (sPES) polymeric matrix. The particles were synthesized first by the co-precipitation method (M0). Different surface modifications were then carried out on them by grafting three functional groups of mercaptopropyl, pro...
متن کاملIon Transport in Silica Nanocomposite Electrolytes
The ion-transport properties of composite electrolytes composed of oligomers of poly~ethylene glycol! dimethyl ether, hydrophobic fumed silica, and Li~CF3SO2)2N ~LiTFSI! are investigated using nuclear magnetic resonance ~NMR!, electrophoretic NMR ~ENMR!, ac impedance spectroscopy, and rheology. The effects of fumed silica and salt concentration on ionic conductivity, diffusivity of ions and oli...
متن کاملSynthesis of Silica Coated Magnetic Nanoparticles
In this research controlled coating of magnetite (Fe3O4) nanoparticles with SiO2 was investigated. The Fe3O4 nanoparticles were synthesized via chemical co-precipitation and then coated by silica according to Stober method. Effects of tetra ethyl ortho silicate (TEOS) concentration and ethanol to TEOS on the coating thickness were inves...
متن کاملPreparation and Catalytic Study on a Novel Amino-functionalized Silica-coated Cobalt Oxide Nanocomposite for the Synthesis of Some Indazoles.
In this research an efficient synthesis of a novel nanocomposite including SiO2@(3-aminopropyl)triethoxysilane-coated cobalt oxide (Co3O4) nanocomposite has been reported by three step method. The structure and magnetic characterization of Co3O4@SiO2@NH2 have been done by using various spectroscopic analyses which include FT-IR, X-ray powder diffraction, scanning electron microscopy, transmissi...
متن کاملHybrid silica-coated plasmonic-magnetic biomarkers
Hybrid magnetic/plasmonic nanoparticles possess properties originating from each individual material. Such properties are beneficial for biological applications including bio-imaging, targeted drug delivery, in vivo diagnosis and therapy. Limitations regarding their stability and toxicity, however, challenge their safe use. Here, the one-step flame synthesis of composite SiO2-coated Ag/Fe2O3 na...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2005
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(05)00879-5