Synthesis and Depositionof Water-Dispersed Prussian Blue Nanocrystals on Polymers and CNTs
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- 作者：Vera Bocharova ; Ganna Gorodyska ; Anton Kiriy ; Manfred Stamm ; Paul Simon ; Ingolf M?nch ; Dieter Elefant ; Xudong Lou ; Francois Stoffelbach ; Christophe Detrembleur ; Robert Jér?me
- 关键词：Prussian Blue ; Nanocrystal ; Carbon nanotubes ; Magnetic properties
- 刊名：Progress in Colloid and Polymer Science
- 出版年：2006
- 出版时间：2006
- 年：2006
- 卷：132
- 期：1
- 页码：pp.161-167
- 全文大小：472 KB
- 刊物类别：Springer Berlin / Heidelberg
- 刊物主题：Chemistry
Polymer Sciences - 出版者：Springer Berlin / Heidelberg
文摘
Nanoparticles can be used for decoration and functionalization of single polymer molecules that have been adsorbed to a solid substrate. Initial attempts to prepare Prussian Blue nanoclusters by a layer-by-layer deposition technique of hexacyanoferrate anions and ferric cations onto isolated polycation chains in water failed because of the desorption of the first layer upon deposition of the next one. A simple method for the preparation of charge-stabilized Prussian Blue nanoparticles of readily adjustable size is reported. Prussian Blue nanoparticles have been purified by addition of non-solvents and redispersed in water without aggregation. Thus formed Prussian Blue nanoparticles are crystalline and display a long-range ferromagnetic ordering at 5.1 K. Prussian Blue nanoparticles were selectively deposited along single polycation molecules to form a one-dimensional array or were attached to the surface of carbon nanotubes (CNTs) functionalized with poly2-vinylpyridine (P2VP). These nanoparticle-based nanostructures might be useful materials for manufacture of electrooptical devices, or mechanically robust ion-sieving membranes.