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dc.date.accessioned | 2019-10-28T11:29:07Z | |
dc.date.available | 2019-10-28T11:29:07Z | |
dc.date.issued | 1984-11-23 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/84114 | |
dc.description.abstract | Two almost reversible electrochemical systems are detected during the potentiodynamic anodization of polycrystalline palladium in 1 M H2SO4 and 1 M HClO4 by applying the triangular modulated triangular potential sweep technique. The first electrochemical system which appears in the 0.7–0.9 V range (vs. RHE) corresponds to the reaction Pd+H2O=PdOH+H++e− whose reversible potential is estimated as 0.80±0.02 V and the average half-life time of PdOH species is estimated as 6×10−3 s. The second electrochemical system appears when the anodizing potential sweep extends to the oxygen evolution potential region. The appearance of the second electrochemical system is accompanied by a change in colour of the electrode surface, a shift of the current-potential curve of the oxygen evolution reaction and an increase in thickness of the oxide anodic layer. The reversible response is tentatively assigned to the PdO2/PdO3 redox couple. | en |
dc.format.extent | 71-82 | es |
dc.language | en | es |
dc.subject | potentiodynamic | es |
dc.subject | polycrystalline | es |
dc.subject | Electroquímica | es |
dc.subject | Electrólitos | es |
dc.subject | Oxígeno | es |
dc.subject | Electrodos | es |
dc.title | Fast faradaic processes observed during the potentiodynamic polarization of polycrystalline palladium in acid electrolyte | en |
dc.type | Articulo | es |
sedici.identifier.other | https://doi.org/10.1016/S0022-0728(84)80276-4 | es |
sedici.identifier.issn | 0022-0728 | es |
sedici.creator.person | Bolzán, Agustín E. | es |
sedici.creator.person | Chialvo, Abel Cesar | es |
sedici.creator.person | Arvia, Alejandro Jorge | es |
sedici.subject.materias | Ciencias Exactas | es |
sedici.subject.materias | Química | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas | es |
mods.originInfo.place | Facultad de Ciencias Exactas | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | Journal of Electroanalytical Chemistry and Interfacial Electrochemistry | es |
sedici.relation.journalVolumeAndIssue | vol. 179, no. 1-2 | es |