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http://cicy.repositorioinstitucional.mx/jspui/handle/1003/3069| Bimetallic AgPt nanoalloys as an electrocatalyst for ethanol oxidation reaction: synthesis, structural analysis, and electro-catalytic activity | |
| FABIAN MARES BRIONES America Higareda JOSE LUIS LOPEZ MIRANDA Rubén Mendoza-Cruz Rodrigo Esparza | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.3390/nano13081396 | |
| AGPT NANOPARTICLES NANOALLOY STRUCTURAL CHARACTERIZATION ELECTROCATALYSIS ETHANOL OXIDATION REACTION | |
| In the present work, the chemical synthesis of AgPt nanoalloys is reported by the polyol method using polyvinylpyrrolidone (PVP) as a surfactant and a heterogeneous nucleation approach. Nanoparticles with different atomic compositions of the Ag and Pt elements (1:1 and 1:3) were synthesized by adjusting the molar ratios of the precursors. The physicochemical and microstructural characterization was initially performed using the UV-Vis technique to determine the presence of nanoparticles in suspension. Then, the morphology, size, and atomic structure were determined using XRD, SEM, and HAADF-STEM techniques, confirming the formation of a well-defined crystalline structure and homogeneous nanoalloy with an average particle size of less than 10 nm. Finally, the cyclic voltammetry technique evaluated the electrochemical activity of bimetallic AgPt nanoparticles supported on Vulcan XC-72 carbon for the ethanol oxidation reaction in an alkaline medium. Chronoamperometry and accelerated electrochemical degradation tests were performed to determine their stability and long-term durability. The synthesized AgPt (1:3)/C electrocatalyst presented significative catalytic activity and superior durability due to the introduction of Ag that weakens the chemisorption of the carbonaceous species. Thus, it could be an attractive candidate for cost-effective ethanol oxidation compared to commercial Pt/C. | |
| 2023 | |
| Artículo | |
| Nanomaterials 2023, 13, 1396, 2023. | |
| Inglés | |
| Mares-Briones, F.; Higareda, A.; Lopez-Miranda, J.L.; Mendoza-Cruz, R.; Esparza, R. Bimetallic AgPt Nanoalloys as an Electrocatalyst for Ethanol Oxidation Reaction: Synthesis, Structural Analysis, and Electro-Catalytic Activity. Nanomaterials 2023, 13, 1396. https://doi.org/10.3390/nano13081396 | |
| PROPIEDADES DE LOS MATERIALES | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos de Investigación Arbitrados |
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