Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

Characterization of PEM fuel cell degradation by polarization change curves (CROSBI ID 219230)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bezmalinović, Dario ; Šimić, Boris ; Barbir, Frano Characterization of PEM fuel cell degradation by polarization change curves // Journal of power sources, 294 (2015), 82-87. doi: 10.1016/j.jpowsour.2015.06.047

Podaci o odgovornosti

Bezmalinović, Dario ; Šimić, Boris ; Barbir, Frano

engleski

Characterization of PEM fuel cell degradation by polarization change curves

Polarization change curves, defined as a difference between the polarization curve at the beginning of life and the actual polarization curve after the cell has been operational for some time, were used to analyze degradation of a PEM fuel cell exposed to voltage cycling as an accelerated stress test for electrocatalyst degradation. Degradation, i.e., loss of voltage was due to increase of activation losses and increase of resistance in the catalyst layer, both most likely due to the loss of catalyst electrochemically active area. The results of the polarization change curves analysis correspond to the findings of the periodic individual tests performed during the accelerated stress test, such as electrochemical impedance spectroscopy, cyclic voltammetry and linear sweep voltammetry. Therefore, this method has potential to be used as a relatively quick and simple, yet effective, degradation diagnostic tool.

Catalyst degradation; ECSA loss; Diagnostics; Activation losses; Resistive losse

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

294

2015.

82-87

objavljeno

0378-7753

10.1016/j.jpowsour.2015.06.047

Povezanost rada

Kemijsko inženjerstvo, Strojarstvo

Poveznice
Indeksiranost