Resumo

MARTINEZ, Maby Mool et al. Palladium nanoparticles from a surfactant-modified hydroxysalt exchanged with tetrachloropalladate. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.206, pp.142-147. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v85n206.68132.

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.

Palavras-chave : surfactant-modified zinc hydroxychloride; palladium nanoparticles; tetrachloropalladate; anionic clays.

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