Role of the interfacial water structure on electrocatalysis: Oxygen reduction on Pt(1 1 1) in methanesulfonic acid
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http://hdl.handle.net/10045/53181
| Title: | Role of the interfacial water structure on electrocatalysis: Oxygen reduction on Pt(1 1 1) in methanesulfonic acid |
|---|---|
| Authors: | Sandoval, Andrea P. | Gómez Marín, Ana María | Suárez-Herrera, Marco F. | 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 water | Pt(1 1 1) surface | Oxygen reduction | Methanesulfonic acid | Hanging meniscus rotating disk voltammetry |
| Knowledge Area: | Química Física |
| Issue Date: | 15-Mar-2016 |
| Publisher: | Elsevier |
| Citation: | Catalysis Today. 2016, 262: 95-99. doi:10.1016/j.cattod.2015.08.046 |
| Abstract: | Most of electrocatalytic reactions occur in an aqueous environment. Understanding the influence of water structure on reaction dynamics is fundamental in electrocatalysis. In this work, the role of liquid water structure on the oxygen reduction at Pt(1 1 1) electrode is analyzed in methanesulfonic (MTSA) and perchloric acids. This is because these different anions can exert a different influence on liquid water structure. Results reveal a lower ORR electrode activity in MTSA than in HClO4 solutions and they are discussed in light of anion's influence on water structural ordering. From them, the existence of an outer-sphere, rate determining, step in the ORR mechanism is suggested. |
| Sponsor: | This work has been carried out under MINECO project CTQ2013-44083-P (Spain). APSR acknowledges the scholarship “Estudiantes sobresalientes de posgrado” at the UNAL and COLCIENCIAS National Doctoral Scholarship (567). MFS acknowledges the support of UNAL (Research Project 19030). |
| URI: | http://hdl.handle.net/10045/53181 |
| ISSN: | 0920-5861 (Print) | 1873-4308 (Online) |
| DOI: | 10.1016/j.cattod.2015.08.046 |
| 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.cattod.2015.08.046 |
| Appears in Collections: | INV - EQSUP - Artículos de Revistas |
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 2016_Sandoval_etal_CatTod_final.pdf | Versión final (acceso restringido) | 479,1 kB | Adobe PDF | Open Request a copy |
 2016_Sandoval_etal_CatTod_preprint.pdf | Preprint (acceso abierto) | 321,35 kB | Adobe PDF | Open Preview |
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