Microporous nanocomposites of Pd and Au nanoparticles via hierarchical self-assembly |
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Authors: | Wang Xiaqin Naka Kensuke Zhu Meifang Itoh Hideaki Chujo Yoshiki |
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Affiliation: | State Key Lab of Chemical Fibers and Polymeric Materials, Donghua University, No. 1882 West Yan-an Road, Shanghai 200051, PR China. |
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Abstract: | Microporous nanocomposites of Pd and Au nanoparticles were generated by utilizing electrostatic interaction between oppositely charged Au nanoparticles coated with carboxylate groups (Au-COO-) and spherical aggregates of Pd nanoparticles (Pd- NH3+) with a mean diameter of 80+/-20 nm stabilized and cross linked by octa(aminopropyl)silsesquioxane octahydrochloride (POSS-NH3+). Amide bonds were formed between the reactive ion couples that are well defined in the Pd-Au colloidal nanocomposites during a subsequent chemical reaction to generate more stable nanocomposites with improved chemical and physical properties. |
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