Redox transformations of adsorbed NO molecules on a Pt(100) electrode
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http://hdl.handle.net/10045/45288
Títol: | Redox transformations of adsorbed NO molecules on a Pt(100) electrode |
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Autors: | Molodkina, E.B. | Botryakova, I.G. | Danilov, A.I. | Souza-Garcia, Janaina | Figueiredo, Marta C. | Feliu, Juan M. |
Grups d'investigació o GITE: | Electroquímica de Superficies |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Paraules clau: | Pt(100) | Nitric oxide NO | Ammonia |
Àrees de coneixement: | Química Física |
Data de publicació: | d’abril-2014 |
Editor: | Pleiades Publishing |
Citació bibliogràfica: | Russian Journal of Electrochemistry. 2014, 50(4): 370-378. doi:10.1134/S1023193513050133 |
Resum: | The electrochemical behavior of adsorbed NO molecules on a Pt(100) electrode has been studied in perchloric acid solutions by means of cyclic voltammetry. According to the literature data, a saturated NO adlayer with a coverage of ∼0.5 monolayers (MLs) is formed under open circuit conditions in an acidic nitrite solution as a result of a disproportionation reaction. The saturated adlayer is stable in the potential range of 0.4–0.9 V vs. a reversible hydrogen electrode in 0.1 M HClO4. NO molecules are oxidized at 0.9–1.1 V with the formation of adsorbed nitrite anions, and they can be reduced to ammonia at potentials less than 0.4 V. In this paper it has been shown that the adlayer stability depends on the surface coverage and extent of ordering. An unsaturated NO adlayer demonstrates NO ↔ NH3 redox transformations at 0.5–0.8 V. |
Patrocinadors: | Financial support from the Russian Foundation for Basic Research (project no. 10-03-00427), MICINN (CTR2010-1624)(Feder), and Generalitat Valenciana (Prometeo/2009/045)(Feder, Spain) is gratefully acknowledged. |
URI: | http://hdl.handle.net/10045/45288 |
ISSN: | 1023-1935 (Print) | 1608-3342 (Online) |
DOI: | 10.1134/S1023193513050133 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © Pleiades Publishing, Ltd. 2014 |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1134/S1023193513050133 |
Apareix a la col·lecció: | INV - EQSUP - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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2014_Molodkina_etal_RJE_final.pdf | Versión final (acceso restringido) | 605,34 kB | Adobe PDF | Obrir Sol·licitar una còpia |
2014_Molodkina_etal_RJE_preprint.pdf | Preprint (acceso abierto) | 746,13 kB | Adobe PDF | Obrir Vista prèvia |
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