Ionic Conductivity

ionic conductivity

[i′än·ik ‚kän‚dək′tiv·əd·ē]
(solid-state physics)
The portion of the electrical conductivity of a solid that results from ionic conduction.

Ionic Conductivity

 

in biological systems, conductivity caused mainly by the diffusion of ions. It plays an important role in the transport of materials between the various structural elements of cells, in the generation and conduction of bioelectric impulses, and in the generation of differences in potentials between the various organelles of the cell, as well as between its external and internal mediums. The total ionic conductivity (mainly for K+, Na+, and Cl-) may be estimated from an equation taking the ionic gradients, the ionic permeability coefficients, and the membrane potential difference into account. The concept of partial ionic conductivity is used in the theory of the generation of bioelectric potentials for the fluxes of various individual ions.

References in periodicals archive ?
Herein, extremely tough and flexible PVA/M-alginate/PAM hydrogels with excellent self-recoverable properties and high ionic conductivity were successfully fabricated by introducing multiple pairs of supramolecular sacrificial bonds in TN through three steps methods of in situ chemical crosslinking, freezing/thawing, and soaking in salt solution with multivalent cation.
Ionic liquids have attracted increasing attentions in the area of electrochemistry due to their significant properties including good chemical and thermal stability, wide liquid temperature range, considerable ionic conductivity, nonflammability, broad electrochemical potential window and tunable solvent properties.
Depending on the synthesis conditions chosen, the nanoporous carbon exhibit different properties such as surface area, porosity, electronic and ionic conductivity, hydrophilicity and electrocatalytic activity.
3.EeEeEeEeEeEe OPTIMISED SEPARATOR DuracellaACAOs separator paper is designed to drive efficiency through low internal resistance and high ionic conductivity. This means ions can cleverly transfer evenly and efficiently between anode and cathode.
The researchers increased the ionic conductivity of PLA by infusing it with an electrolyte solution.
Figures 3 and 4 show the effect of temperature on the ionic conductivity and electronic conductivity, at CO/C[O.sub.2] = 1.
As seen from molar volume results, the presence of nonbridging oxygen causes expansion in the glass structure, which facilitates the mobility of the lead ions and increases the ionic conductivity. The vanadium pentoxide ions contribute gradually to (electronic) conduction according to their amount in the samples.
The conductivity was calculated using the formula: [sigma] = l = [R.sub.b]/A in S/cm, where [sigma] = ionic conductivity, l = thickness of the polymer electrolyte film, [R.sub.b] = bulk resistance, and A = area of the stainless steel electrode, contacting the polymer electrolyte film.
The ionic conductivity is described by the number of ions present and their respective mobility was ascribed for adsorbed N[H.sup.+.sub.4] -ions [5, 6, 10].
One of the main objectives is to develop the blend polymer systems with enhanced ionic conductivity. There are several strategies in solid polymer electrolyte (SPE) systems to suppress the crystalline nature.