Digital simulation of galvanostatic current-potential data for gas-diffusion electrodes and estimation of electrodekinetic parameters
Data(s) |
01/06/1994
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Resumo |
A computerized non-linear-least-squares regression procedure to analyse the galvanostatic current-potential data for kinetically hindered reactions on porous gas-diffusion electrodes is reported. The simulated data fit well with the corresponding measured values. The analytical estimates of electrode-kinetic parameters and uncompensated resistance are found to be in good agreement with their respective values obtained from Tafel plots and the current-interrupter method. The procedure circumvents the need to collect the data in the limiting-current region where the polarization values are usually prone to errors. The polarization data for two typical cases, namely, methanol oxidation on a carbon-supported platinum-tin electrode and oxygen reduction on a Nafion-coated platinized carbon electrode, are successfully analysed. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/36410/1/digital.pdf Arico, AS and Shukla, AK and Antonucci, V and Giordano, N (1994) Digital simulation of galvanostatic current-potential data for gas-diffusion electrodes and estimation of electrodekinetic parameters. In: Journal of power sources, 50 (1-2). 177 -186 . |
Publicador |
Elsevier Science |
Relação |
http://dx.doi.org/10.1016/0378-7753(94)01901-0 http://eprints.iisc.ernet.in/36410/ |
Palavras-Chave | #Solid State & Structural Chemistry Unit |
Tipo |
Editorials/Short Communications PeerReviewed |