... Conductivity (S.cm -1) 10 00C 800C Activation energy (kJ.mol -1) 6.5 x 10 -2 1. 8 x 10 -2 72 x 10 -2 1. 6 x 10 -1 Ref [12 ] [13 ] 4.5 x 10 -2 70 [12 ] A high dopant concentration leads to the introduction ... Electrochem Soc 19 94, 14 1, 212 2 [17 ] E J Brightman, R Maher, D G Ivey, G Offer, N P Brandon, ECS Transactions 2 011 , 35, 14 07 [18 ] X Wang, N Nakagawa, K Kato, J Electrochem Soc 20 01, 14 8, A565 [19 ] J Mizusaki, ... PROPERTIES OF SOFC ANODE 10 3 INTRODUCTION 10 7 REVIEW OF IMPEDANCE STUDIES ON THE EFFECTS OF H2S ON SOFCS 10 8 GENERAL ANALYSIS OF IMPEDANCE SPECTRA OBTAINED AT 500C 11 1 3 .1 TYPICAL...