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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 47 for “"Electrical double layer"”.
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Interface Driven Dynamics at Nanoscales:Polymer thin films and Electrical Double Layer
The electrical double layer (EDL) is formed due to the accumulation of charge at the interface of a metal surface in contact with an electrolyte. The total charge in the EDL compensates the charge on the metal surface. As EDL is the layer that "connects" the electrode to the "bulk", all electrode …
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Surface reactions and electrical double layer properties of ceramic oxides in aqueous solution
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1984.
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Microscopic Physics of Electrical Double Layers
The electrical double layer exists at the phase boundaries of electrolyte solutions, where counterions from solution preferentially accumulate to screen surface charges. Due to the ubiquity of electrolytes, the electrical double layer plays a central role in many fields in science and engineering, …
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Diffuse double-layer interaction for nonspherical colloidal particles
… methods is presented. Specifically, the electrical double layer is examined using computational methods. To this end, the Poisson-Boltzman equation is solved numerically for geometries corresponding to interacting clay particles. The interaction energies of double layers is calculated for …
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The modeling and analysis of the electroosmotic flow, diffusion, electrophoretic migration, and adsorption mechanisms of charged and uncharged adsorbates in capillary electrochromatography systems employing charged adsorbent particles - comparisons between theory and experiments
… and equilibrium effects of the presence of an electrical double layer on the electrically-driven mass transport mechanisms of electroosmotic flow (EOF) and electrophoretic migration, as well as the interplay of these transport mechanisms with the diffusion and adsorption mechanisms of charged …
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Simulating complex conductivity in carbonate rocks: using digital carbonate rocks and comparison to laboratory measurements
… and pores. We then calculated the effective electrical conductivity of the digital rock volume using a pore-scale numerical approach. The complex conductivity of geomaterials is influenced by the electrical properties and geometry of each phase, i.e., the solid and fluid phases. In addition, …
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Electro-reduction of bromate on mercury
… the "bridging" is a result of ion-pairing in the electrical double-layer"--Abstract, page 1.</p>
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Electrochemistry of room temperature ionic Liquids with applications to electrospray propulsion
… by interfacial properties, in particular the electrical double layer (EDL).
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Detection of Antibody-Antigen Reactions using Surface Acoustic Wave and Electrochemical Immunosensors
… to detect antibody-antigen reactions. The electrical properties at the surface of a sensor are also changed when an antibody-antigen reaction occurs. This can be detected by electrochemical sensors. Capacitively coupled two- and four-electrode sensors were developed to measure the impedance …
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Probing Interfacial Potential under Transient Conditions via Second Harmonic Generation at Pt-water interface
… that there is an intrinsic reorganization of the electrical double layer (EDL) beyond the Ohmic contribution. Our finding highlights the EDL dynamics beyond the equivalent circuit model and that the interpretation of the transient potential analysis may not as straightforward as previously …
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Gate potential control of nanofluidic devices
… enhances the electrokinetic effects caused by electrical double layer. Which in turn accelerates the creation of a charge polarization region and improves the concentration capabilities of the device. We also have demonstrated concentration polarization effect, caused by pressure-driven flow in …
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Molecular mechanics of cartilage : quantification of GAG electrostatic interactions via high-resolution force spectroscopy
… to form model biomimetic polyelectrolyte "brush" layers whose environment was varied to mimic physiological conditions. The total intersurface force (<[or equal to] nN) between the CS-GAG brushes and chemically modified probe tips (SO₃⁻ and OH) was measured as a function of tip-substrate …
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Nano-pipette as nanoparticle analyzer and capillary gated ion transistor
… of the channel has to be small enough for electrical double layer to overlap.</p>
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Organic fouling in membrane capacitive deionization systems
… desalination technology that stores ions in the electrical double layer of porous electrodes. For most low-salinity water treatment technologies, fouling is a central issue, but few studies examine the its impact on MCDI. Fouling was evaluated using synthetic saline solutions with a combination …
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Computational Approaches of Electrochemistry: Insights into Electrical Double Layers of Concentrated Aqueous Electrolytes and Ionic Liquids
The electrical double layer (EDL) is a fundamental structure of oppositely charged layers formed at the interface of an electrolyte and electrode. It plays a crucial role in electrochemistry by dynamically changing its structure in response to applied voltages, thereby influencing charge and …
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Water quality effects on the bubble-particle attachment of sulfide minerals
… which leads to the compression of the electrical double layer and the subsequent faster rupturing of the film at the air – water and solid – water interfaces resulting in faster bubble-particle attachment. Zeta potential measurements showed that the surface charge of the particles …
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Biofunctionalization of Submicrometer Pores and Mass Limited Sample Manipulations in Three-Dimensional Hybrid Microfluidic/nanofluidic Devices
… which exploits cation transport due to the electrical double layer overlap. In additon, sorting and concentration of samples can be achieved by nanofluidic filtering which sorts out molecules with radius of gyration (Rg) smaller than the NCAM pore size and stacks the larger molecules at the …
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