| dc.creator | Zinola Sánchez, Carlos Fernando | |
| dc.creator | Castro Luna Berenguer, Ana María del Carmen | |
| dc.creator | Triaca, Walter Enrique | |
| dc.creator | Arvia, Alejandro Jorge | |
| dc.date | 1994 | |
| dc.date | 2022-11-23T15:33:18Z | |
| dc.date.accessioned | 2023-07-15T05:12:05Z | |
| dc.date.available | 2023-07-15T05:12:05Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/146265 | |
| dc.identifier | issn:0021-891X | |
| dc.identifier | issn:1572-8838 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7472463 | |
| dc.description | The oxygen electroreduction reaction has been studied at both preferred oriented and conventional polycrystalline platinum rotating disc electrodes in x m KOH (0.05 ⩽ x ⩽ 3.0) aqueous solutions under oxygen saturation at 25°C. At low current densities, Tafel lines with slope -0.060 V decade⁻¹ have been obtained at all platinum electrodes. At high current densities, higher Tafel slopes ranging from -0.18 to -0.40 V decade⁻¹ have been observed, depending on the type of preferred oriented Pt and KOH concentration. Rotating ring-disc electrode data have shown that a higher amount of H₂O₂ is produced on one type of preferred oriented surface at all KOH concentrations. A complex reaction scheme has been used to evaluate the electrochemical rate constants of the reaction steps at three platinum electrodes. | |
| dc.description | Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas | |
| dc.format | application/pdf | |
| dc.format | 531-541 | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Química | |
| dc.subject | Platinum Electrode | |
| dc.subject | Oriented Surface | |
| dc.subject | Rotate Disc Electrode | |
| dc.subject | Prefer Crystallographic Orientation | |
| dc.subject | Oxygen Electroreduction | |
| dc.title | Kinetics and mechanism of the electrochemical reduction of molecular oxygen on platinum in KOH: influence of preferred crystallographic orientation | |
| dc.type | Articulo | |
| dc.type | Articulo | |
