Publicado

2018-07-01

Palladium nanoparticles from a surfactant-modified hydroxysalt exchanged with tetrachloropalladate

Nanopartículas de paladio a partir de una hidroxisal modificada con surfactante intercambiada con tetracloropaladato

DOI:

https://doi.org/10.15446/dyna.v85n206.68132

Palabras clave:

surfactant-modified zinc hydroxychloride, palladium nanoparticles, tetrachloropalladate, anionic clays (en)
hidroxicloruro de zinc modificado con surfactante, nanopartículas de paladio, tetracloropaladato, arcillas aniónicas (es)

Autores/as

Palladium nanoparticles supported in the interlayer space of hydroxysalts were obtained from zinc hydroxychloride via a prior intercalation of the anionic surfactant sodium dodecyl sulfate (DS), followed by an exchange with potassium tetrachloropalladate and its final reduction to metallic palladium by ethanol. The final materials and their intermediates were characterized by several instrumental techniques such as PXRD, N2 adsorption, SEM, and TEM. The comparative analyses revealed clearly visible changes on structure, specific surface area and morphology of the reduced material with respect to the starting precursors. The analyses demonstrated that, upon modification of the starting material with the surfactant, the resulting material had a significantly enhanced interlayer space and BET area, which were fairly maintained until the reduced palladium-containing hydroxysalt was obtained.
Se obtuvieron nanopartículas de paladio soportadas en el espacio interlaminar de hidroxisales obtenidas a partir de hidroxicloruro de zinc, mediante la intercalación previa del surfactante aniónico dodecil sulfato de sodio (DS), seguida por intercambio con tetracloropaladato de potasio y la reducción final a paladio metálico mediante etanol. Los materiales finales e intermediarios fueron caracterizados mediante varias técnicas instrumentales tales como PXRD, adsorción de N2, SEM y TEM. Los análisis comparativos revelaron cambios claramente observables en la estructura, área superficial específica y morfología del material reducido con respecto a los precursores de partida. Los análisis demostraron que, tras la modificación del material de partida con el surfactante, en el material resultante se incrementó el espacio interlaminar y el área BET, los cuales se conservaron considerablemente hasta la obtención de la hidroxisal que contenía nanopartículas de paladio reducido.

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Cómo citar

[1]
M. M. Martínez, R. Ocampo-Cardona, J. M. Aguirre-Cortés, O. H. Giraldo, y L. A. Rios Vásquez, «Nanopartículas de paladio a partir de una hidroxisal modificada con surfactante intercambiada con tetracloropaladato», DYNA, vol. 85, n.º 206, pp. 142–147, jul. 2018, doi: 10.15446/dyna.v85n206.68132.