Exploring the interfacial neutral pH region of Pt(111) electrodes
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http://hdl.handle.net/10045/48238
Title: | Exploring the interfacial neutral pH region of Pt(111) electrodes |
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Authors: | Martínez-Hincapié, Ricardo | Sebastián, Paula | Climent, Victor | Feliu, Juan M. |
Research Group/s: | Electroquímica de Superficies |
Center, Department or Service: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Keywords: | Interfacial pH | Double layer | Single crystal electrode | Pt(111) | Potential of zero charge | Neutral pH buffer |
Knowledge Area: | Química Física |
Issue Date: | Sep-2015 |
Publisher: | Elsevier |
Citation: | Electrochemistry Communications. 2015, 58: 62-64. doi:10.1016/j.elecom.2015.06.005 |
Abstract: | The interfacial properties of Pt(111) single crystal electrodes have been investigated in the pH range 3 < pH < 5 in order to obtain information about the acidity of electrosorbed water. Proper experimental conditions are defined to avoid local pH changes while maintaining the absence of specifically adsorbed anions and preserving the cleanliness of the solution. For this purpose, buffer solutions resulting from mixtures of NaF and HClO4 are used. Total charge curves are obtained at different pHs from the integration of the voltammetric currents in combination with CO charge displacement experiments. Analysis of the composition of the interphase as a function of the pH provides information for the understanding of the notion of interfacial pH. |
Sponsor: | Support from MINECO (Spain) through project CTQ2013-44083-P is greatly acknowledged. RMH thankfully acknowledges support from Generalitat Valenciana under the Santiago Grisolia Program (GRISOLIA/2013/008). PS thankfully acknowledges to the Generalitat Valenciana the award of a valid grand. |
URI: | http://hdl.handle.net/10045/48238 |
ISSN: | 1388-2481 (Print) | 1873-1902 (Online) |
DOI: | 10.1016/j.elecom.2015.06.005 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2015 Elsevier B.V. |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1016/j.elecom.2015.06.005 |
Appears in Collections: | INV - EQSUP - Artículos de Revistas |
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2015_Martinez-Hincapie_etal_ElectrComm_final.pdf | Versión final (acceso restringido) | 449,89 kB | Adobe PDF | Open Request a copy |
2015_Martinez-Hincapie_etal_ElectrComm_accepted.pdf | Accepted Manuscript (acceso abierto) | 722,87 kB | Adobe PDF | Open Preview |
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