Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite
- Autores
- Podestá, José J.; Piatti, Roberto C. V.; Arvia, Alejandro Jorge
- Año de publicación
- 1990
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The anodic and cathodic behaviour of polycrystalline Pt in sodium hypophosphite solutions has been investigated by cyclic voltammetry. In acid solutions the voltammograms show that, owing to the presence of the reducing agent, electrooxidation of species related to H₃PO₃ occurs in the potential range 0.6 to 1.4 V with respect to NHE. In alkaline solutins the presence of NaH₂PO₂ partially inhibits the HER and displaces the formation of the oxygen monolayer on platinum to higher potentials. The voltammetric peaks are attributed to the electrooxidation of the products resulting from the chemical decomposition of NaH₂PO₂ in contact with the Pt surface.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
Física
Oxygen
Sodium
Physical Chemistry
Aqueous Solution
Platinum - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/130945
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Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphitePodestá, José J.Piatti, Roberto C. V.Arvia, Alejandro JorgeQuímicaFísicaOxygenSodiumPhysical ChemistryAqueous SolutionPlatinumThe anodic and cathodic behaviour of polycrystalline Pt in sodium hypophosphite solutions has been investigated by cyclic voltammetry. In acid solutions the voltammograms show that, owing to the presence of the reducing agent, electrooxidation of species related to H₃PO₃ occurs in the potential range 0.6 to 1.4 V with respect to NHE. In alkaline solutins the presence of NaH₂PO₂ partially inhibits the HER and displaces the formation of the oxygen monolayer on platinum to higher potentials. The voltammetric peaks are attributed to the electrooxidation of the products resulting from the chemical decomposition of NaH₂PO₂ in contact with the Pt surface.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1990info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf245-251http://sedici.unlp.edu.ar/handle/10915/130945enginfo:eu-repo/semantics/altIdentifier/issn/0021-891Xinfo:eu-repo/semantics/altIdentifier/issn/1572-8838info:eu-repo/semantics/altIdentifier/doi/10.1007/bf01033602info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:04:43Zoai:sedici.unlp.edu.ar:10915/130945Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:04:44.169SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| title |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| spellingShingle |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite Podestá, José J. Química Física Oxygen Sodium Physical Chemistry Aqueous Solution Platinum |
| title_short |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| title_full |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| title_fullStr |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| title_full_unstemmed |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| title_sort |
Voltammetric behaviour of platinum in aqueous solutions containing sodium hypophosphite |
| dc.creator.none.fl_str_mv |
Podestá, José J. Piatti, Roberto C. V. Arvia, Alejandro Jorge |
| author |
Podestá, José J. |
| author_facet |
Podestá, José J. Piatti, Roberto C. V. Arvia, Alejandro Jorge |
| author_role |
author |
| author2 |
Piatti, Roberto C. V. Arvia, Alejandro Jorge |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Química Física Oxygen Sodium Physical Chemistry Aqueous Solution Platinum |
| topic |
Química Física Oxygen Sodium Physical Chemistry Aqueous Solution Platinum |
| dc.description.none.fl_txt_mv |
The anodic and cathodic behaviour of polycrystalline Pt in sodium hypophosphite solutions has been investigated by cyclic voltammetry. In acid solutions the voltammograms show that, owing to the presence of the reducing agent, electrooxidation of species related to H₃PO₃ occurs in the potential range 0.6 to 1.4 V with respect to NHE. In alkaline solutins the presence of NaH₂PO₂ partially inhibits the HER and displaces the formation of the oxygen monolayer on platinum to higher potentials. The voltammetric peaks are attributed to the electrooxidation of the products resulting from the chemical decomposition of NaH₂PO₂ in contact with the Pt surface. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
| description |
The anodic and cathodic behaviour of polycrystalline Pt in sodium hypophosphite solutions has been investigated by cyclic voltammetry. In acid solutions the voltammograms show that, owing to the presence of the reducing agent, electrooxidation of species related to H₃PO₃ occurs in the potential range 0.6 to 1.4 V with respect to NHE. In alkaline solutins the presence of NaH₂PO₂ partially inhibits the HER and displaces the formation of the oxygen monolayer on platinum to higher potentials. The voltammetric peaks are attributed to the electrooxidation of the products resulting from the chemical decomposition of NaH₂PO₂ in contact with the Pt surface. |
| publishDate |
1990 |
| dc.date.none.fl_str_mv |
1990 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/130945 |
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http://sedici.unlp.edu.ar/handle/10915/130945 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0021-891X info:eu-repo/semantics/altIdentifier/issn/1572-8838 info:eu-repo/semantics/altIdentifier/doi/10.1007/bf01033602 |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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