A Surface-Functionalized Ionovoltaic Device for Probing Ion-Specific Adsorption at the Solid–Liquid Interface Sun Geun Yoon, YoungJun Yang, Huding Jin, Won Hyung Lee, Ahrum Sohn, Sang-Woo Kim, Junwoo Park,* and Youn Sang Kim* S. G. Yoon, Y. Yang, H. Jin, W. H. Lee, Prof. Y. S. Kim Program in Nano Science and Technology
Read OnAs biomimetic actuators that are operable under low voltages, ionic polymer–metal composites (IPMCs) have been proposed as promising candidates in the field of artificial muscles. In this study, a high specific surface area was obtained by directional roughening of a Nafion surface, and high-quality electrodes containing a Pd buffer layer and a Pt layer were deposited …
Read OnA sensitive, ion-specific measurement scheme is proposed and analysed theoretically. It is based on transit-time surface plasmon resonance (SPR) sensing in an electrolytic conductivity cell comprising an electrode supporting surface plasmons (SPs). The transit-time SPR response involves dynamics of ion transport in the electrolytic conductivity ...
Read OnMean-field theories that include nonelectrostatic interactions acting on ions near interfaces have been found to accommodate many experimentally observed ion specific effects. However, it is clear that this approach does not fully account for the liquid molecular structure and hydration effects. This is now improved by using parametrized ionic potentials deduced from …
Read OnThe resulting surface tension increments, surface tension gradients, surface potentials and Gibbs-Marangoni pressures are given in Table 1.It can be seen that the surface tension gradients are in reasonable agreement with experimental values,, given the approximate nature of G i ads (z).For NaCl, an α α salt, the surface potential is low as the two ions have …
Read OnA Surface-Functionalized Ionovoltaic Device for Probing Ion-Specific Adsorption at the Solid–Liquid Interface. Sun Geun Yoon, Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826 Republic of Korea.
Read OnEurope PMC is an archive of life sciences journal literature. A simple modality is suggested to include, in the framework of a modified Poisson-Boltzmann approach, specific ion effects via the change in the ion hydration between the bulk and the vicinity of the surface.
Read OnThe importance of specific ion adsorption and surface charge effects in the design and operation of photoelectrochemical (PEC) devices is demonstrated by experimental data on the n-GaAs/electrolyte and n-Si/electrolyte interface. The electrolyte chosen for the present study was an ambient temperature molten salt comprising mixtures of aluminum chloride and n-butyl …
Read Onby surface coating or doping. 2. Improve initial coulombic . efficiency (CE) by surface coating. with single ion conductors . 3. Improve volumetric capacity. by forming carbon composite. with metal oxide • Capacity fade with cycling • Low initial coulombic efficiency • Low density (low volumetric capacity) Challenges Approaches
Read OnIon-specific effects at (001) surface. Adsorption of Na + and Li + at (001) surface of kaolinite was subject to p-DFT calculations. Because of smaller ionic radii than K +, Na + and Li + became closer to the O De atom and exerted the less influence on the adjacent surface-H atoms.
Read OnIn this paper a quantitative analysis of the coadsorption ratio for oxides,r OH, that is the number of OH-ions coadsorbing with each specifically adsorbing metal ion at given pH, is given. This ratio is an important double-layer parameter. It is shown that because of the high accumulation of charge on the surface and the effective compensation of this charge by countercharge in the Stern …
Read OnIon binding to acidic groups is a central mechanism for ion-specificity of macromolecules and surfaces. Depending on pH, acidic groups are either protonated or deprotonated and thus change not only charge but also chemical structure with crucial implications for their interaction with ions.
Read OnA Surface-Functionalized Ionovoltaic Device for Probing Ion-Specific Adsorption at the Solid–Liquid Interface. Sun Geun Yoon, Program in Nano …
Read OnHydrogenated NiCo2O4 double-shell hollow spheres, combining large specific surface area and high conductivity, are prepared. A specific capacitance increase of >62%, from 445 to 718 F g−1, is ...
Read Onspecific surface area). The metric generally regarded as a better indicator of health risks rather than the particle mass is the specific surface [26]. However, there is cur-rently a lack of information available in the literature on the emission rates of particles from machining in terms of their specific surface. Little or no work has been car-
Read OnComparison between specific surface complexation and Donnan ion-exchange models for describing the adsorption of cations on kraft fibres – literature evidence and EXAFS study of …
Read OnGrinder Machine Hazards. All types of grinding machines, whether pedestal, bench mounted, free-standing or portable, can be potentially hazardous if they are not well maintained and used correctly. In addition to the common hazards of flying particles, dust and sparks, shattering abrasive wheel while in Motion can cause severe injury to both ...
Read OnSomeone starting with cold rolled steel for ways or a belt sander for a grinding spindle will not end up with a surface grinder. He'll have a grinder of some sort or an abrasive belt finishing machine. See, you gotta create a new name for a new machine. "Surface grinder" is already taken and people depend in it meaning a certain thing.
Read OnSpecific Ion Binding to Non-Polar Surface Patches of Proteins Mikael Lund1,*, Luboš Vrbka2, and Pavel Jungwirth1 1Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, and Center for Biomolecules and Complex Molecular Systems. Flamingovo nam. 2, CZ-16610 Prague 6, Czech Republic.
Read OnColloidal force measurements as a function of pH can yield the isoelectric point (IEP) of a surface immersed in an electrolyte. The condition of surface charge-potential regulation imposed by the potential-dependent binding of H + and counter-ions at the interface makes a detailed analysis of the electrostatic force non-trivial. In the current study, the specific ion …
Read OnA Surface‐Functionalized Ionovoltaic Device for Probing Ion‐Specific Adsorption at the Solid–Liquid Interface Advanced Materials ( IF 30.849) Pub Date :, DOI: 10.1002/adma.201806268
Read OnSpecific ion effect on the surface properties of Ag/reduced graphene oxide nanocomposite and its influence on photocatalytic efficiency towards azo dye degradation. Author links open overlay panel Priyakshree Borthakur a b Purna K. Boruah a b Najrul Hussain a b Yumnam Silla b c Manash R. Das a b.
Read Onion i within the fluid phase where it is dissolved (number of ions per unit volume), and Γi is the excess of ion i at the interface, that is, the number of ions in excess at the surface per unit area. The Gibbs isotherm shows that, if the surface (or interfacial) tension increases with increasing ion concentration (positive derivative in Eq.
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