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Using Ionic Liquid (using + ionic_liquid)
Selected AbstractsGreen Synthesis of Silver Nanoparticles Using Ionic Liquid and Application for the Detection of Dissolved OxygenELECTROANALYSIS, Issue 6 2010Tsung-Hsuan Tsai Abstract The electrochemical synthesis of silver nanoparticles (nano-Ag) has been successfully carried out on glassy carbon electrode (GCE) and indium tin oxide electrode (ITO) using 1-butyl-3-methylimidazolium tetrafluoroborate (BMT) as green electrolytes. Further the electrodeposited nano-Ag modified ITO electrode has been examined using atomic force microscopy (AFM), and X-ray diffraction studies (XRD). The electrodeposited Ag nanoparticles on ITO were found in the size range of 5 to 35,nm. The nano-Ag film modified GCE was further coated with nafion (Nf) and BMT (1,:,1 ratio) mixture and found to be stable in BMT and in pH,7 phosphate buffer solution (PBS). The nano-Ag/BMT-Nf film modified GCE successfully applied for the oxygen reduction reaction in neutral pH (pH,7.0 PBS). The proposed film modified GCE successfully reduces the over potential and show well defined reduction peaks for the detection of dissolved oxygen using cyclic voltammetry (CV) and rotating disc voltammetry (RDE). The film also applied for the detection of dissolved oxygen using electrochemical impedance spectroscopic studies (EIS). [source] Novel Gelling Systems of , -, , - and , -Carrageenans and their Composite Gels with Cellulose Using Ionic LiquidMACROMOLECULAR BIOSCIENCE, Issue 4 2009Kamalesh Prasad Abstract Gels of three types of carrageenans (, -, , - and , -), as well as their composite gels with cellulose, were prepared using an ionic liquid, 1-butyl-3-methylimidazolium chloride (BMIMCl), by a heating-cooling process. , -Carrageenan gave the formation of hard gel while the other two carrageenans gave the formation of softer gels with BMIMCl. The gels were characterized by X-ray diffraction (XRD), thermal analysis (TGA and DSC), scanning electron microscope (SEM) and compressive testing. The results indicated that, among the three types of carrageenans, , - and , -carrageenans gave better miscible gels with BMIMCl, followed by , -carrageenan. On the other hand, , -carrageenan gave a better miscible composite gel with cellulose and BMIMCl, followed by , - and , -carrageenans. The stress-strain curves indicated that the mechanical properties of the above gel systems on the compressive mode were much better than those of the hydrogels of , - and , -carrageenans as well as the cellulose gel with BMIMCl. [source] Synthesis of Propargylic Alcohols by Base-Promoted Alkynylation of Ketones with Ethynylbenzene Using Ionic Liquid [(bmim)PF6].CHEMINFORM, Issue 49 2007Sachin R. Jagtap Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] ChemInform Abstract: Conversion of Fructose to 5-Hydroxymethylfurfural Using Ionic Liquids Prepared from Renewable Materials.CHEMINFORM, Issue 15 2009Suqin Hu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Preparation of Mesoporous Molecular Sieves Al-MSU-S Using Ionic Liquids as TemplateCHINESE JOURNAL OF CHEMISTRY, Issue 10 2006Xin-Yu Yu Abstract Mesoporous molecular sieves Al-MSU-S has been prepared from the precursor of zeolite Y using ionic liquids 1-hexadecane-3-methylimidazolium bromide (CMIMB) as a template in basic medium, which exhibited larger pore diameter, pore volume and surface area than that synthesized using cetyl trimethyl ammonium bromide (CTAB) template. [source] | ||||||||||