Electrochemical behaviour of the solid electrolyte Ag6I4WO4

✍ Scribed by Milenko V. Šušić; Slavko V. Mentus

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 502 KB
• Volume: 28
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(83)85084-1

✦ Synopsis

Electrochemical investigation of the solid electrolyte Ag,I,W04 (0.8 A,@ + 0.2 Ag,WO, mixture) was performed. By means of cyclic volmmmetry, normal pulse polarography and ac polarography methods the electrode processes and the capacity of electric double layer on electrode/electrolyte interface were investigated at several temperature levels (room temperature, 373 K, 386 K and 423 K). It was shown that on the electrode, either a Pt or Ag one, at direct and reverse cathodic polarization, Ag+ * Ag redox process occurs, and for it a substantial exchange current value was found. venti it is concluded that the redox process at all the observed temperatures is very fast and that the rate increases with a rise in temperature. Also the passivation of the electrode at anodic polarization affecting the electrolyte decomposition voltage level considerably was pointed out. The electric double-layer capacity values found show that the structure of the layer changes with temperature and de potential, which is manifested on the capacity.