نتایج جستجو برای: Ionic transport property

تعداد نتایج: 470541  

2018
Wen-Li Yuan Xiao Yang Ling He Ying Xue Song Qin Guo-Hong Tao

The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design of new functionalized ILs. The dicyanamide (DCA) ILs are typical CHN type ILs which are halogen free, chemical stable, low-viscous, and fuel-rich. The transport properties of DCA ionic liquids are significant for their applications as solvents, electrolytes, and hypergolic propellants. Thi...

Abdullah M. Asiri Heba Abbas Keshmery Manoj Kumar, Mohammad Mujahid Khan,

Polyvinyl chloride supported silver molybdate composite material is used to develop by solution casting method. This membrane was characterized by various instrumental techniques such as Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) analyses. These characterizations are used to understand the functional groups,thermal sta...

Journal: :ACS applied materials & interfaces 2013
Geoffrey M Geise Michael A Hickner Bruce E Logan

Salinity gradient energy technologies, such as reverse electrodialysis (RED) and capacitive mixing based on Donnan potential (Capmix CDP), could help address the global need for noncarbon-based energy. Anion exchange membranes (AEMs) are a key component in these systems, and improved AEMs are needed in order to optimize and extend salinity gradient energy technologies. We measured ionic resista...

Journal: :journal of membrane science and research 0
m. nemati department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran s. m. hosseini department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran e. bagheripour department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran s.s. madaeni membrane research centre, department of chemical engineering, faculty of engineering, razi university, kermanshah 67149, iran

in the current research, polyvinylchloride based mixed matrix heterogeneous anion exchange membranes were prepared by a solution casting technique. titanium dioxide nanoparticles were also utilized as inorganic filler additive in the membrane fabrication. the effect of tio2 nanoparticles concentration in the casting solution on the membrane physico-chemical properties was studied. membrane wate...

2015
Warren D. Brown HUGH BROWN Warren Dacosta Hugh Brown Gangli Wang Donald Hamelberg

The high surface to volume ratio which is a property of nanoscale devices means the interfacial effects from these devices on the mass transport of analyte can be significant. Quartz nanopipette effect on the mass transport behavior of inorganic monovalent salts such as potassium chloride is shown to differ from those of conical nanopore. Quartz nanopipettes demonstrate a more significant inter...

2009
Alexander Chertovich Pavel G. Khalatur Alexei R. Khokhlov

Using NPT and NVT molecular dynamics simulation techniques, we have simulated an atomistic model of solvated Nafion in the lithium salt form, with the following three main objectives: (i) to obtain details on the local environment of the lithium cations and to assess the solvent effect on their binding, (ii) to investigate the translational and rotational motion of solvent molecules (water and ...

2009
Ramesh L. Gardas João A. P. Coutinho

Thermophysical and transport properties of ionic liquids are required for the design of processes and products. Yet the experimental data available are scarce and often contradictory. Based on experimental data collected from the literature, group contribution methods were developed for the estimation of viscosity, electrical conductivity, thermal conductivity, refractive index, isobaric expans...

Journal: :Nature materials 2016
Jiandong Feng Ke Liu Michael Graf Dumitru Dumcenco Andras Kis Massimiliano Di Ventra Aleksandra Radenovic

Emergent behaviour from electron-transport properties is routinely observed in systems with dimensions approaching the nanoscale. However, analogous mesoscopic behaviour resulting from ionic transport has so far not been observed, most probably because of bottlenecks in the controlled fabrication of subnanometre nanopores for use in nanofluidics. Here, we report measurements of ionic transport ...

Journal: :iranian journal of hydrogen & fuel cell 2015
mona iravaninia saba azizi soosan rowshanzamir

in present research work, homogeneous anion exchange membranes based on polysulfone (qapsfs) were prepared via chloromethylation, amination and alkalization. in amination step, trimethylamine and n,n,n',n'-tetramethyl-1,6-hexanediamine were used as amination and crosslinking agents, respectively. the chloromethylated polysulfone was characterized by 1hnmr spectroscopy and chloromethylation degr...

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