No abstract

In the system of SDS/n-C 5 H 11 OH/n-C 7 H 16 /H 2 O with the weight ratio of SDS/n-C 5 H 11 OH/H 2 O system at 5.0/47.5/47.5, the upper phase of the system was W/O microemulsion, and the lower phase was the bicontinuous microemulsion. When the n-heptane content was less than 1%, with the increase of the n-heptane content, the capacitance (C o , C od ) in the upper phase (W/O) dropped, the capacitance (C BI , C BId ) in the lower phase (BI) raised. At the same time, the W/O-BI interfacial potential (∆E), capacitance (C i ), and charge-transfer current (i ct ) decreased. After the n-heptane content reached 1%, with the increase of the n-heptane content, ∆E, C i and i ct demonstrated no significant change.