On the nature of adsorbed species on platinum single-crystal electrodes
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http://hdl.handle.net/10045/131874
Título: | On the nature of adsorbed species on platinum single-crystal electrodes |
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Autor/es: | Rizo, Rubén | Herrero, Enrique | Climent, Victor | Feliu, Juan M. |
Grupo/s de investigación o GITE: | Electroquímica de Superficies |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Palabras clave: | Platinum electrodes | OH adsorption | Hydrogen adsorption | Anion adsorption |
Fecha de publicación: | 9-feb-2023 |
Editor: | Elsevier |
Cita bibliográfica: | Current Opinion in Electrochemistry. 2023, 38: 101240. https://doi.org/10.1016/j.coelec.2023.101240 |
Resumen: | The dependence of voltammetric currents on multiple parameters (concentration, pH, temperature, etc) has become a primary source of information in interfacial studies of noble metal electrodes. Peak potential, charge, and width are intimately related to surface structure and reactivity. However, this interpretation usually neglects the complexity of the redox processes involved. For the so-called hydrogen adsorption region in platinum, anion competitive adsorption plays an important role that is usually overlooked. While charge displacement already demonstrated decades ago the existence of anion adsorption contributions, only recently a combination of several surface-sensitive techniques has proven unambiguously the presence of OH adsorbed on step sites at potentials much lower than usually considered. This information must not be neglected when analyzing the properties of complex catalysts, such as those composed of nanoparticles, since it is of great importance for understanding its overall reactivity, comparing with computational results, and performing coulometric analysis. |
Patrocinador/es: | This research was funded by Ministerio de Ciencia e Innovación (Spain) grant number PID2019-105653GB-I00) and Generalitat Valenciana (Spain) grant number PROMETEO/2020/063. |
URI: | http://hdl.handle.net/10045/131874 |
ISSN: | 2451-9103 (Print) | 2451-9111 (Online) |
DOI: | 10.1016/j.coelec.2023.101240 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.coelec.2023.101240 |
Aparece en las colecciones: | INV - EQSUP - Artículos de Revistas |
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