Examples of using Ionic conductivity in English and their translations into Portuguese
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The main electrolyte used for sofc manufacturing is the zro2-y2o3 owing your high ionic conductivity.
Therefore, this group of copper sulfides shows ionic conductivity at slightly elevated temperatures.
This high ionic conductivity(and a low electronic conductivity) makes it one of the most useful electroceramics.
In this model, the degree of quantum coherence in the selectivity filter of the channel and the ionic conductivity are intrinsically connected.
The high power is due to the high ionic conductivity of the molten salt, which is three orders of magnitude(or more) greater than that of the sulfuric acid in a lead-acid car battery.
It has been shown that dna can be plasticized with glycerol,resulting in a transparent membrane with good ionic conductivity.
These instabilities are caused by a coupling of electric fields and ionic conductivity gradients that results in an electric body force.
We used a gel-polymer electrolyte, because of its advantage of being lessvolatile than liquid electrolytes, easy to be manipulated and high ionic conductivity.
The dna-based membranes were also subjected to ionic conductivity measurements showing the highest value of 3.2x10-4 s/cm2 at room temperature and of 0.1x10-3 s/cm2 at 75ºc for the isolated dna.
The bicuvox is a potential candidate for devices that require materials with high ionic conductivity at intermediate temperatures.
The ionic conductivity and the solution viscosity increased with the incorporation of polypyrrole doped with dodecyl benzene sulfonic acid(ppy. dbsa) and ppy. dbsa synthesized in the presence of montmorillonite mmt-ppy. dbsa.
In the study, the physicochemical characterization of ionic liquids were investigated: viscosity,density, ionic conductivity, thermal gravimetric analysis and water content.
Nuclear magnetic resonance(nmr) spectroscopy, translational diffusion coefficients and transverse relaxation times(t2) contribute to the understanding of the involved structures andthe ongoing dynamical processes in ionic conductivity.
The substitution of chemical elements in the La9.33 Si6 O26 structure has been studied aiming at further increase its ionic conductivity and germanium was found to be a promising element for this purpose.
Ionic conductivity in glasses was first discovered and demonstrated by warburg in 1884, but although it has been studied for over a century, the mechanisms underlying ionic conduction in glasses are not yet entirely clear.
Operation at high temperatures overcome these problems, butit brings the necessity of humidification to certain membranes whose ionic conductivity depends on water.
Na-¿¿¿-alumina solid electrolytes,due to its high ionic conductivity for sodium ions, are among the most promising oxide ionic conductors for the zebra battery, operating at temperatures of approximately 300 ºc, with high efficiency.
The more conductive glasses result from the dissolution of halogenated salts in the glassy matrix, causing its ionic conductivity to increase by several orders of magnitude.
It was found that the ionic conductivity of these samples, as a function of temperature, can be explained by vogel-tammann-fulcher model, and the electrolyte pf04(pvb with 40% of licf3so3) had the highest conductivity value of 1,5¿10-4 s/cm when compared to other samples.
Solid electrolyte is the part of the fuel cell has three essential functions: separate reagents, blocking electronic current andhave high ionic conductivity of the elements that compose it.
During the titration, one of the ions is replaced by the other andinvariably these two ions differ in the ionic conductivity with the result that conductivity of the solution varies during the course of titration.
Although studies involving solid polymeric electrolytes have 0been reported, the research for materials that combine good mechanical strength, elasticity, chemical andthermal stabilities and ionic conductivity is still emerging.
The level of hydration within the proton exchange membrane is vital to its performance:if the hydration level is too low, the polymers exhibit greatly reduced ionic conductivity; if hydration level is too high, excess water can flood the pores in the gas diffusion layer and impede mass transport within the electrode structure.
The pils were described through nuclear magnetic resonance(nmr), thermogravimetric analysis(tga) and differential scanning calorimetry(dsc), as well as by their physicochemical properties: water content, viscosity,density and ionic conductivity.
Doped lanthanum gallate is a potential solid electrolyte for intermediate-temperature solid oxide fuel cells due to its high ionic conductivity and stability in a wide range of oxygen partial pressure.
As a consequence, grain growth, segregation phenomena and GeO2 volatilization are very prone to occur, leading to the formation of phases with different La/(Si/Ge) ratios and structures andresulting in a significant decrease of the ionic conductivity.
The membranes with similar results to nafion, were evaluated in a fc prototype at 80 °c. the membrane spind50/pvdf andall the membranes with coupling agent had ionic conductivity in the order of 10-2 s/cm, comparable to the nafion's. the polyelectr.
Unlike bicuvox, the y-tzp phase presents high mechanical resistance and high stability under reducing atmospheres. however,it does not display high ionic conductivity at intermediate temperatures.
This technology is based on solid electrolytes capable to operate up to 1000oC, however, it is crucial to develop new materials of high performance and durability at reasonable cost,possessing sufficiently high ionic conductivity in the temperature range of 600 to 800oC in order to decrease the SOFCs operating temperatures.
The increase of temperature leads to the increase of ion activity and free chance of insulating material, the corresponding increase of ion number,the increase of ionic conductivity current and the decrease of insulation resistance.