Silver ion conductors

FIGURE 25.8 Temperature dependence of conductivity for typical silver ion conductors, Agl and RbAg4l5, compared with those for YSZ and an aqueous solution of H2SO4. (From Gelings and Bouwmeester, 1997, Fig. 6.5, with permission from CRC Press LLC via CCC.)... 

Figure 22. L.h.s. Four basic space charge situations involving ionic conductors (here silver ion conductor) a) contact with an isolator, b) contact with a second ion conductor, c) grain boundary, d) contact with afluid phase. R.h.s. Bending of energy levels and concentration profiles in space charge zones ( = 0 refers to the interfacial edge).

Figure 44. The temperature dependence ofthe specific conductivity for a series of selected silver ion conductors. (AgAlnOir reads more correctly Agi+xAliiOntxn). The superionic conductors are characterized by flat slopes and high absolute values.23...

The double layer capacitance frequently appears shortcircuited by a rather low faradic resistance. In this field, most of the experiments were performed with silver ion conductors. ... 

Like RbAg I potassium silver iodide is a silver ion conductor. The working electrode was of the point type.An iodine atmosphere was maintained over the electrolyte. It was obtained by flushing an argon flow over thermostated so 1 id iodine. Iodine pressure varied from 10 to 10 " atm. 

Although by far not the best silver ion conductor known with a published resistivity of 10 cm (l6) at room temperature, beta silver sulfide Ag2S has one of the lowest solubility products in water reported 1.6 10 9 18 C. Furthermore, it resists attack... 

RbAg4l5 is the inorganic silver ion conductor having the highest conductivity over a broad temperature range, slightly lower than that in ot-Agl. Its conductivity a = 0.26 S/cm at 25 °C is comparable to that of H2SO4 in aqueous solutions [6] (Fig. 1). 

Wada H, Sato A, Onoda M, Adams S, Tansho M, Ishii M (2002) Phase transition and crystal structure of silver-ion conductor Agl2-nM + nS6 (M = Ti, Nb, Ta). Solid State Ion 154 723-727... 

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