Growth of nearly monodisperse palladium nanoparticles on disaggregated kaolinite lamellae
作者： S. Papp , I. Dékány
关键词: Chemical engineering 、 Intercalation (chemistry) 、 Transmission electron microscopy 、 Adsorption 、 Cationic polymerization 、 Nanoparticle 、 Dispersity 、 Palladium 、 Kaolinite 、 Materials science 、 Inorganic chemistry
摘要: Palladium nanoparticles were prepared by in situ growth between kaolinite layers. Expansion of the interlayer space was effected intercalation dimethyl sulfoxide (DMSO) at 65 °C. The basal spacing increased from 0.72 to 1.12 nm during this process. After washing with methanol (partial displacement DMSO ), nonionic poly(vinylpyrrolidone)/kaolinite, cationic poly(diallyldimethylammonium)/kaolinite and octylammonium/kaolinite complexes generated adsorbing polymer or surfactant solution. Kaolinite samples containing palladium hydrazine NaBH4 reduction ions adsorbed a solution H2PdCl4 (pH 4). size particles formed determined transmission electron microscopy measurements which showed that nearly spherical, monodisperse about 1 generated.
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