نتایج جستجو برای: nonaqueous medium

تعداد نتایج: 237763  

2008
Brigitte Korthals Andreas Berkefeld Martin Ahlmann Stefan Mecking

The cationic nickel(II) complexes [(η-C3H5)Ni(SbPh3)2][B(3,5-(CF3)2C6H3)4] (2) and [(η3C3H5)Ni(SbPh3)2][Al(OC(CF3)3)4] (3) were prepared and their polymerization activities in aqueous systems were compared with [(η-C3H5)Ni(η-BHT)][B(3,5-(CF3)2C6H3)4] (1) (BHT ) 3,5-di-tert-butyl-4-hydroxytoluene). Cispolybutadiene is formed in nonaqueous solution polymerization. The presence of water decreases ...

Journal: :Journal of advanced research 2016
E Sheha

Nonaqueous liquid electrolyte system based dimethyl sulfoxide DMSO and magnesium bromide (MgBr2) is synthesized via 'Solvent-in-Salt' method for the application in magnesium battery. Optimized composition of MgBr2/DMSO electrolyte exhibits high ionic conductivity of 10(-2) S/cm at ambient temperature. This study discusses different concentrations from 0 to 5.4 M of magnesium salt, representing ...

Journal: :Electrophoresis 1999
M Fillet I Bechet V Piette J Crommen

The aim of the present work was to investigate the separation of nonsteroidal anti-inflammatory drugs (NSAIDs: niflumic acid, flufenamic acid, piroxicam, alclofenac, tiaprofenic acid, flurbiprofen, suprofen, ketoprofen, naproxen, indomethacin, carprofen, indoprofen, sulindac) in capillary electrophoresis (CE) using completely nonaqueous systems. The influence of different parameters such as nat...

2011
Idalia Bilecka Martin Kubli Esther Amstad Markus Niederberger

Combination of the surfactant-free nonaqueous sol–gel approach with the microwave technique makes it possible to synthesize Fe3O4, CoFe2O4, MnFe2O4, and NiFe2O4 nanoparticles of about 5–6 nm and with high crystallinity and good morphological uniformity. The synthesis involves the reaction of metal acetates or acetylacetonates as precursors with benzyl alcohol at 170 C under microwave irradiatio...

2007
Adina Raducan Mihaela Puiu D. Oancea ADINA RADUCAN MIHAELA PUIU D. OANCEA

The kinetics of the reaction between malachite green and hidroxide ion was studied in several binary mixtures of water with alcohols (methanol, ethanol, 1-propanol, ethylene glycol and glycerol) and aprotic solvents (DMSO). In all solvents, the selective (preferential) solvation is present. A method for estimating the dielectric constant in the solvation shell and the constant of preferential s...

Journal: :Plant physiology 1967
G L Ritenour K W Joy J Bunning R H Hageman

Greenhouse grown seedlings of corn (Zea mays L.) and foxtail (Setaria faberii Herrm.) were used as source material in determining the intracellular localization of nitrate reductase, nitrite reductase, and glutamic acid dehydrogenase, Nonaqueous and aqueous isolation techniques were used to establish that nitrite reductase is localized within the chloroplasts, but that nitrate reductase and glu...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Kai Guo Yuanyuan Hu Yahong Zhang Baohong Liu Edmond Magner

The electrochemical properties of cytochrome c (cyt c) immobilized on multilayer nanozeolite-modified electrodes have been examined in aqueous and nonaqueous solutions. Layers of Linde type-L zeolites were assembled on indium tin oxide (ITO) glass electrodes followed by the adsorption of cyt c, primarily via electrostatic interactions, onto modified ITO electrodes. The heme protein displayed a ...

Journal: :The Journal of Chemical Physics 2011

Journal: :Journal of the Ceramic Society of Japan 1995

Journal: :Current Opinion in Electrochemistry 2021

As the energy density of state-of-the-art lithium (Li)-ion batteries (LIBs) increases, safety concern LIBs using liquid electrolytes is drawing increasing attention. Flammability a critical link overall performance and Li metal batteries. For this reason, intensive efforts have been devoted to suppressing flammability electrolytes. In short review, common approaches reduce nonaqueous will be su...

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