Mechanistic Interpretation of the Grain Boundary Conductance in AgCl

3 Mechanistic Interpretation of the Grain Boundary Conductance in AgCl 

(19) gives a solution of this integral, and hence the grain boundary conductance for enhanced silver vacancy concentration reads 

While Fgb and Ubuik are deduced from the measurements, we still need the bulk concentration of vacancies to calculate the space charge potential according to Eq. (52). Using the room-temperature mobility of vacancies obtained from literature data [102], and sc as the bulk permittivity of AgCl, a bulk vacany concentration of 5.8 1015 cm 1 can be evaluated from the measured bulk conductivity. This value is used to determine an effective space charge potential of about 300 mV and a grain 

5 Investigation of the Oxygen Reduction Reaction on LaMn03 Microelectrodes 

---