The Nicholson's treatment for the evaluation of the heterogeneous standard rate constant k(0) of electron transfer from cyclic voltammetric (CV) data is combined with the Klingler and Kochi method suitable to totally irreversible systems in order to use very large DeltaE(P) x n values, where n is the number of electrons involved in a simple electron-transfer process O + n e(-) reversible arrow R. An empirical relationship between the dimensionless parameter Psi = k(0) [piDnvF/(RT)](-1/2) and DeltaE(P) x n which practically replaces the Nicholson's working curve up to about 200 mV is reported.
An extended method for the practical evaluation of the standard rate constant from cyclic voltammetric data / Irma, Lavagnini; Antiochia, Riccarda; Franco, Magno. - In: ELECTROANALYSIS. - ISSN 1040-0397. - STAMPA. - 16:6(2004), pp. 505-506. [10.1002/elan.200302851]
An extended method for the practical evaluation of the standard rate constant from cyclic voltammetric data
ANTIOCHIA, RICCARDA;
2004
Abstract
The Nicholson's treatment for the evaluation of the heterogeneous standard rate constant k(0) of electron transfer from cyclic voltammetric (CV) data is combined with the Klingler and Kochi method suitable to totally irreversible systems in order to use very large DeltaE(P) x n values, where n is the number of electrons involved in a simple electron-transfer process O + n e(-) reversible arrow R. An empirical relationship between the dimensionless parameter Psi = k(0) [piDnvF/(RT)](-1/2) and DeltaE(P) x n which practically replaces the Nicholson's working curve up to about 200 mV is reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
