<報文>電解質溶液の電導度測定における周波数依存成分について

概要

論文の詳細を見る
The resistance ΔR, which exists at the electrode-electrolyte interface and is dependent to the frequency used, is an important factor to be considered besides the resistance of the solution in the conductivity measurement of the electrolyte by alternating current. The present authors discussed in detail on the source of the resistance ΔR and its effect on the electrical conductivity. The results obtained are as follows : 1) Warburg's equation, Rs=a/√<ω>, Cs=b/√<ω>, is only available to the system, in which the slagmetal interface is at equilibrium potential and the exchange current density is large. Here, Rs, Cs, and W are the resistance, capacity and the frequency in radiance per second, respectively. 2) ΔR is not directly proportional to l/√<ω> and might be attributed to the surface roughness of the solid electrode. 3) The apparent activation energy of the conductivity is clearly affected by the frequency for melts with high conductivity such as Na_2O-SiO_2 melts.
東北大学の論文
1969-10-30