Microporous Nanocomposites of Pd and Au Nanoparticles via Hierarchical Self-Assembly
- 3 November 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 21 (26), 12395-12398
- https://doi.org/10.1021/la0521387
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.Keywords
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