Capacitance and ionic association at the electrified oil vertical bar water interface: the effect of the oil phase composition

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Pereira, CM (Author) FCUP; Silva, F (Author) FCUP; Sousa, MJ (Author) Other; Kontturi, K (Author) Other; Murtomaki, L (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: JOURNAL OF ELECTROANALYTICAL CHEMISTRY

Vol. 509

Pages: 148-154

ISSN: 0022-0728

Indexing

ISI Web of Knowledge - 19 Citations

Scopus - 20 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-TJK

DOI: 10.1016/s0022-0728(01)00528-9

Abstract (EN): The capacitance of the polarisable aqueous \ organic interface was measured with the impedance method, varying both the solvent and the electrolyte of the organic phase. The results were analysed using the idea of interfacial ion-pairing presented earlier (J. Chem. Soc. Faraday Trans. 87 (1991) 107). It appeared that this model was capable of explaining the measured capacitances quite well for 2-heptanone, 2-octanone and 1,3-dibromopropane as the organic solvent, while for 1,2-dichloroethane - which is perhaps the most common solvent used in liquid \ liquid electrochemistry - the model needed to be modified, assuming a mixed layer between the bulk solvent phases as suggested earlier in the literature.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7