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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Pereira, CM (Autor) FCUP; Silva, F (Autor) FCUP; Sousa, MJ (Autor) Outra; Kontturi, K (Autor) Outra; Murtomaki, L (Autor) Outra

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: JOURNAL OF ELECTROANALYTICAL CHEMISTRY

Vol. 509

Páginas: 148-154

ISSN: 0022-0728

Indexação

ISI Web of Knowledge - 19 Citações

Scopus - 20 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7