Solid State lonics 40/41 (1990) 886-888 North-Holland OXYGEN TRANSPORT AND TRANSFER PROPERTIES OF ERBIA-STABILIZED BISMUTH OXIDE
نویسنده
چکیده
The electrode resistances of solid solutions of 75 tool% Bi203-25 tool% Er203 with sputtered and with copressed gold gauze electrodes were compared. In contrast with literature no enhancement of the electrode process could be observed for the copressed electrodes. The measurements show an oxygen partial pressure dependence of power -0.5 for the electrode resistance. Additionally ~sO 2 exchange results also point to a low oxygen coverage and dissociative adsorption of oxygen. The electrode surface contributes significantly to the electrode process.
منابع مشابه
Oxygen surface exchange kinetics of erbia-stabilized bismuth oxide
The surface oxygen exchange kinetics of bismuth oxide stabilized with 25 mol% erbia (BE25) has been studied in the temperature and pO2 ranges 773–1,023 K and 0.1– 0.95 atm, respectively, using pulse-response O–O isotope exchange measurements. The results indicate that BE25 exhibits a comparatively high exchange rate, which is rate determined by the dissociative adsorption of oxygen. Defect chem...
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