Oxidation Mechanism of Formic Acid on the Bismuth Adatom-Modified Pt(111) Surface
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Title: | Oxidation Mechanism of Formic Acid on the Bismuth Adatom-Modified Pt(111) Surface |
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Authors: | Perales-Rondón, Juan V. | Ferre-Vilaplana, Adolfo | Feliu, Juan M. | Herrero, Enrique |
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: | Oxidation mechanism | Formic acid | Bismuth adatoms | Pt(111) electrodes modified |
Knowledge Area: | Química Física |
Issue Date: | 4-Sep-2014 |
Publisher: | American Chemical Society |
Citation: | Journal of the American Chemical Society. 2014, 136(38): 13110-13113. doi:10.1021/ja505943h |
Abstract: | In order to improve catalytic processes, elucidation of reaction mechanisms is essential. Here, supported by a combination of experimental and computational results, the oxidation mechanism of formic acid on Pt(111) electrodes modified by the incorporation of bismuth adatoms is revealed. In the proposed model, formic acid is first physisorbed on bismuth and then deprotonated and chemisorbed in formate form, also on bismuth, from which configuration the C–H bond is cleaved, on a neighbor Pt site, yielding CO2. It was found computationally that the activation energy for the C–H bond cleavage step is negligible, which was also verified experimentally. |
Sponsor: | This work has been financially supported by the MINECO (Spain) (project CTQ2013-44083-P) and Generalitat Valenciana (project PROMETEOII/2014/013). |
URI: | http://hdl.handle.net/10045/40702 |
ISSN: | 0002-7863 (Print) | 1520-5126 (Online) |
DOI: | 10.1021/ja505943h |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2014 American Chemical Society |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1021/ja505943h |
Appears in Collections: | INV - EQSUP - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2014_Perales_etal_JACS_final.pdf | Versión final (acceso restringido) | 1,07 MB | Adobe PDF | Open Request a copy |
2014_Perales_etal_JACS.pdf | Accepted Manuscript (acceso abierto) | 373,63 kB | Adobe PDF | Open Preview |
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