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	Colloidal Silver
		Ionic charge is responsible for the electrostatic repulsion that causes ions to remain dispersed in a liquid.
		Is an ionic conductor and the electrical conductivity is directly related to the ionic concentration.
		Ionic charge is caused by the missing electron and is different from particle charge that is caused by adsorption of ions on the surface of the particle.
	www.frequencyrising.com /colloidal_silver_definitions.htm (9459 words)

	Ionically conducting molecule, ionic conductor and process for producing the same - Patent 6566014
		The ionic conductivities of the three kinds of the ionic conductors, the un-annealed sample, the annealed sample 1 and the twice-annealed sample 2 were examined in the temperature range of from room temperature to 90.degree.
		The ionic conductivities of the three kinds of ionic conductors, the un-annealed sample, the annealed sample 1 and the twice-annealed sample 2, were measured in the temperature range of from room temperature to 90.degree.
		The ionic conductivities of four kinds of the ionic conductors in total, the un-annealed samples and the annealed samples, were measured in the temperature range of from room temperature to 90.degree.
	www.freepatentsonline.com /6566014.html (8469 words)

	Storage device patent invention (Site not responding. Last check: 2007-10-30)
		As a result, the resistance of the ionic conductor goes to a low level and the resistance of the memory element 20 also goes to a low level, thereby making it possible to write information in the memory element 20.
		5, the ionic conductor 5 has an arrangement of a bilayer structure composed of an ionic conductor layer 51 provided on the side (upper side) of the first electrode 2 and an ionic conductor layer 52 provided on the side (lower side) of the second electrode 3.
		The ionic conductor layer 51 is made of GeSbTeAg, for example, and the ionic conductor layer 52 is made of GeSbTe, for example.
	www.freshpatents.com /Storage-device-dt20050505ptan20050097257.php?type=description (6386 words)

	IONIC (Site not responding. Last check: 2007-10-30)
		The formation of an ionic bond involves the removal of an electron from one atom, a process known as ionization, and the energy required is called the ionization potential of the atom.
		Because the forces are relatively strong, ionic solids tend to be strong materials, to have definite patterns of cleavage, and to have high melting points.
		The movement of electrons in the conductor and the location of the atoms of the nonconductor give the bodies positive charges on the side nearest to the negatively charged body and give negative charges on the sides opposite from it.
	www.motthall.org /intro/cur/herzog/science2000/ionic/ionic.htm (2614 words)

	Cerium(IV) oxide - Wikipedia, the free encyclopedia
		Ceria has seen interest as a material for solid oxide fuel cells or SOFCs since it is an ionic conductor, i.e.
		This occurs because as the oxygen atoms leave the ceria lattice vacancies are created that don't counteract the charge of the cerium atoms resulting in a repulsion of ceriums that leads to an expanion of the lattice.
		These vacancies are also responsible for the ionic conductivity of the ceria.
	en.wikipedia.org /wiki/Cerium(IV)_oxide (322 words)

	Editorial
		Modern advances in the electrochemistry of solids have upturned two of these assumptions: a large number of ionic compounds are now classified as ‘superionic’ conductors as they conduct in the solid state and are important materials for developing new types of battery.
		On cooling the organic conductors their resistance decreases like true metals, but unfortunately change to an insulating state around 50 K. As conductors these materials are inferior to graphite but one additional reason for the intense interest in them is the possibility they hold for an organic super-conductor operating at temperatures of 20K or above.
		An electronic conductor may either be a metallic conductor (resistance drops with decreasing temperature, electrons carry the current) or a semi-conductor (resistance increases as temperature decreases; current carried by electrons, n-type, or by electron-holes, p-type).
	www.ul.ie /~childsp/CinA/cina2/TOC18_Frontiers.htm (1211 words)

	C&EN: NEWS OF THE WEEK - ION TRANSPORT IN POLYMER COMPLEXES
		In work that could lead to the development of all-solid-state rechargeable lithium batteries and other electrochemical devices, researchers in Scotland have shown that ionic conductivity in a family of crystalline polymer electrolytes is superior to that in the equivalent amorphous materials.
		They also demonstrated, using NMR spectroscopy, that the ionic conductivity in the crystalline materials is dominated by transport of the lithium cations.
		The team suggests that the enhanced ionic conductivity of the crystalline materials results from the cations moving through the tunnels.
	pubs.acs.org /cen/topstory/7932/7932notw4.html (469 words)

	Solid electrolyte ionic conductor systems for the production of high purity nitrogen - Patent 5944874
		There are two types of ion transport membranes in use: ionic conductors that conduct only ions through the membrane and mixed conductors that conduct both ions and electrons through the membrane.
		As used herein, the terms "solid electrolyte ionic conductor", "solid electrolyte", "ionic conductor", and "ion transport membrane" are used to designate either an ionic-type system or a mixed conductor-type system unless otherwise specified.
		Another object of the invention is to enhance the efficiency of the process by employing proper oxygen-depleted purge gas streams or a vacuum for the permeate sides of the prepurifier and ion transport membrane and/or a reactive purge for the ion transport membrane.
	www.freepatentsonline.com /5944874.html (8662 words)

	Silver Colloids: Definition of Terms
		The ionic and covalent bonds are idealized cases, however; most bonds are of an intermediate type.
		ionic mobility - A quantitative measure of an ion's ability to move under the influence of a potential difference in solution.
		The chemical formula for an ionic salt is an empirical formula; it does not represent a molecule but shows the proportion of atoms of the elements that make up the salt.
	www.silver-colloids.com /Papers/definitions.html (10926 words)

	Electrolyte
		Because of this stabilisation zirconia becomes a reasonable ionic conductor at SOFC operating temperatures (750-1000°C) and can be used as electrolyte material.
		Ionic conduction proceedes through oxygen vacancies due to insertion of a di- or trivalent element (Ca, Sc) instead of the tetravalent Zr The lack of positive charge is balanced by free oxygen lattice sites.
		Besides good ionic conductivity gastightness of the electrolyte is the most important characteristic the material should have.
	www.fz-juelich.de /iwv/iwv1/index.php?index=70 (364 words)

	Liquids Conducting Current
		So you were correct to notice that mercury or molten sodium are metals and electron-conductors, rather than ionic conductors.
		Metallic (Electron) conductors range in color from bright silvery to dark silvery gray to fl (such as graphite).
		It might be more scientifically illuminating to the reader, to start from "electronic" and "ionic" conduction, and work towards solid and liquid.
	www.newton.dep.anl.gov /askasci/phy00/phy00846.htm (608 words)

	Electrochemistry - Wikipedia, the free encyclopedia
		Electrochemistry is a branch of chemistry that studies the reactions which take place at the interface of an electronic conductor (the electrode composed of a metal or a semiconductor, including graphite) and an ionic conductor (the electrolyte).
		A concentration cell is an electrochemical cell whose electrodes are from the same material differing in ionic concentrations on both half-cells.
		For example an electrochemical cell, where two copper electrodes are submerged on blue vitriol's solution, whose concentrations are 0.05 M and 2.0 M, while connected through wire and saline bridge.
	en.wikipedia.org /?title=Electrochemistry (5521 words)

	Intute sciences - >Chemical Sciences: Electrode and Cell Structures and Notations
		The electronic conductor can be an active part of the electrochemical reaction, as copper electrodes are in aqueous copper sulfate cells, or it may be an inert conductor which does not take an active part in the electrode reaction.
		A salt bridge, an electrolytic conductor used to separate two electrolyte solutions while allowing the passage of ionic charge between them, is designated by //, one slash for the phase boundary at each end; the contents of the salt bridge are usually omitted, since it serves only as an ionic conductor.
		Whether a cell is galvanic or electrolytic, electrons flow into cathodes from the electronic conductors leading to external wires in order to carry out the reduction reaction.
	www.intute.ac.uk /sciences/reference/plambeck/chem2/p02092.htm (926 words)

	Relaxation and fluctuations in glassy fast-ion conductors: Wide-frequency-range NMR and conductivity measurements (Site not responding. Last check: 2007-10-30)
		Relaxation and fluctuations in glassy fast-ion conductors: Wide-frequency-range NMR and conductivity measurements
		, which implies a difference in the corresponding correlation functions of the ionic diffusional motion.
		The implications of these findings are discussed in terms of the microscopic mechanisms which lead to fluctuations and relaxation in fast-ionic conductors.
	cmp.ameslab.gov /cmp/Abstracts/borsa_22.html (144 words)

	Chemical Sciences: Electrolytes, Electrodes, and Electrochemical Cells
		Electrolyte solutions are ionic conductors as distinguished from the electronic conductors, such as metallic wires, in which charge is carried by movement of electrons.
		A salt bridge is a tube containing a relatively high concentration of an ionic salt such as potassium chloride.
		The electrons can be provided through a metallic conductor leading to an external source or sink, and the metallic conductor on contact with the electrolyte constitutes an electrode.
	www.ualberta.ca /~jplambec/che/p102/p02073.htm (810 words)

	Chem 161
		A strong electrolyte is a [good/poor] conductor of electricity.
		A weak electrolyte is a [good/poor] conductor of electricity.
		For ionic and net ionic equations, both the material (atoms) and the net electrical charge must balance.
	www.chem.hawaii.edu /asato161/CH4note.html (1034 words)

	New Page 1
		The two electrodes of a fuel cell are separated by an ionic conductor electrolyte.
		The electrolyte is solid at room temperature but is a liquid and a carbonate ion conductor at the fuel cell operating temperature (650° to 800° C/1200° to 1470° F).
		This system has the advantage of utilizing carbon monoxide as a fuel; therefore, mixtures of carbon monoxide and hydrogen, such as are produced in a coal gasifier, may be used as fuel.
	www.alentecinc.com /Abstract.htm (561 words)

	Mixed Conducting Electrodes for Better AMTEC Cells
		Electrode materials that exhibit mixed conductivity (that is, both electronic and ionic conductivity) have been investigated in a continuing effort to improve the performance of the alkali metal thermal-to-electric converter (AMTEC).
		Thus, the cathode design is subject to competing requirements to be thin enough to allow transport of sodium to the low-pressure side, yet thick enough to afford adequate electronic conductivity.
		(an ionic conductor) or of W (an electronic conductor) and Na (an ionic conductor).
	www.nasatech.com /Briefs/Feb03/NPO20920.html (622 words)

	Intute sciences - >Chemical Sciences: Applications of Electrochemistry: Membrane Potentials
		Whenever two electrolyte solutions of different composition are separated by an ionic conductor, it is possible in principle to observe all or part of that difference in composition as a difference in potential which obeys the Nernst equation.
		This can be done experimentally if one electrode is placed on each side of the ionic conductor so that one is in each of the two different electrolyte solutions.
		If all substances could move through the ionic conductor equally well the cell potential difference would be zero, but if only some can move through or into the conductor (or if not all of them move equally well) then the cell potential difference will not be zero.
	www.intute.ac.uk /sciences/reference/plambeck/chem2/p02116.htm (702 words)

	FC Basics
		The ionic conductor must have low gas permeability and low electronic conductivity.
		The electrodes are layered and porous structures permeable to liquids or gases, and connected to an electrical circuit as illustrated in Figure 2.1.
		A current of equal magnitude flows by virtue of charge carriers within the ionic conductor.
	www.mech.ubc.ca /FCH2/FC/basics.htm (474 words)

	Clefs 44 Moving towards new battery electrolytes (Site not responding. Last check: 2007-10-30)
		On the one hand, its physical state, either liquid or solid, has an impact on the safety of the system and on the other, its conductivity determines the operating temperature range.
		Liquid carbonate-based electrolytes (propylene carbonate, ethylene carbonate, dimethyl carbonate) are the ionic conductors for most of the cylindrical or rectangular (flat) lithium batteries currently sold for portable electronics.
		This involves reducing the internal resistance and hence increasing the ionic conductivity of the electrolyte.
	www.cea.fr /gb/publications/Clefs44/an-clefs44/clefs4472a.html (772 words)

	Electrochemistry C
		It has three essential parts: two electrical conductors, which are usually metal plates, separated and insulated by the third part called the dielectric.
		In metallic conductors the charge carriers are electrons, while ions carry the charges in electrolyte solutions.
		The movement of electrical charges in a conductor; carried by electrons in an electronic conductor and by ions in an ionic conductor.
	www.corrosion-doctors.org /Dictionary/Dictionary-C.htm (3909 words)

	MrSci.com: All Science, All the Time
		Biochemistry the chemistry of life, a bridge between biology and chemistry that studies how complex chemical reactions give rise to life...
		Organic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds...
		Spectroscopy is the study of spectra, that is, the dependence of physical quantities on frequency...
	www.mrsci.com /chemistry/electro.html (635 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		Applications of Solid State Ionic Conductivity Measurements of thermodynamic quantities, such as the change of thermodynamic potential SYMBOL 68 \f "Symbol"G, primarily at elevated temperatures, are frequently performed for systems involving ionic transport in solids.
		For these systems, solid state ionics make the experiment particularly simple if a proper electric cell is set up involving the conducting ceramic.
		An example of this procedure is the use of stabilized zirconia as an oxygen ionic conductor.
	www.mmat.ubc.ca /courses/mmat382/sections/cnc787.doc (780 words)

	Fully Yttria Stabilized Zirconia (Site not responding. Last check: 2007-10-30)
		At room temperature, their ionic conductivity is too low.
		Moreover, pure zirconia is a low ionic conductor.
		However, due to the addition of aliovalent oxides, oxygen ion vacancies are created through which ionic conduction can occur: oxygen ions can jump from one unoccupied site to the next.
	ares.ame.arizona.edu /mip-ogs/ysz_soec.html (115 words)

	Kainos Energy Corporation (Site not responding. Last check: 2007-10-30)
		These reactions occur at what is known as the Triple-Phase Boundary (TPB) of electronic conductor, ionic conductor, and pore.
		Recent studies have shown that properly designed solid oxide fuel cell (SOFC) electrodes comprising nanostructured electronic and ionic conductors greatly extend the TPB, lowering polarization (i.e.
		Lower polarization and higher ionic conductivity lead to increased efficiency and provide the ability for fuel cells to operate at lower temperatures.
	www.kainosenergy.com /technology-index.htm (498 words)

	LSDS ISSP RAS
		For example, the growth of Pb dendrites in PbF2 crystals or Ag-dendrites in RbAg4I5 crystals due to injection of electrons into the crystal were discovered and investigated.
		Investigation of the electronic and ionic conductivity and determination of the position of electronic and ionic Fermi levels.
		Effect of the light irradiation and elastic deformation on the process of ionic transport."Ionic photoconductivity".
	www.issp.ac.ru /lsds/indexen.html (310 words)

	Clefs44 Glossary page 2 (Site not responding. Last check: 2007-10-30)
		in an SOFC fuel cell, material (often a ceramic) that acts as an ionic conductor in the solid state and at high temperatures (several hundred degrees) but not as an electronic conductor
		The currently popular formula combines an internal combustion engine and a battery supplying an electrical traction system; in steady-state conditions, and thus optimum efficiency, the first recharges the battery which absorbs the current peaks and recovers the braking energy
		Ionic, covalent and metallic hydrides differ through the nature of the bond between the hydrogen and the element considered, as well as through their properties
	www.cea.fr /gb/institutions/Clefs44/an-clefs44/clefs44_gloss_2a.html (729 words)

	Gordon Research Conference
		Impurity and point defect segregation to ionic grain boundaries and surfaces is known to influence interface the physical properties of the material, even when the segregants do not form distinct reaction phases.
		The particle motion was characterized as a function of field strength, pH, and ionic strength of the background electrolyte.
		Abstract: Mixed ionic-electronic conductors with the perovskite structure, such as La0.5Sr0.5CoO3-d (LSCO) are of interest for oxygen transport membranes, electrode for solid oxide fuel cells and as oxygen sensor because of their high electronic and oxygen ionic conductivity.
	faculty.washington.edu /bordia/Ceramics_Gordon_2002/aug12pm.html (13273 words)

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