Simple preparation method of multilayer polymer films containing Pd nanoparticles
Data(s) |
2001
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Resumo |
A simple route to the fabrication of multilayer films containing Pd nanoparticles is described. Following layer-by-layer assembly of PdCl42- and polycation, QPVP-Os (a quaternized poly(4-vinylpyridine) complexed with [Os(bpy)(2)Cl](2+/+)), on 4-aminobenzoic acid-modified glassy carbon electrodes, the three-dimensional Pd nanoparticle multilayer films are directly formed on electrode surfaces via electrochemical reduction of PdCl42- sandwiched between polymers. The growth of PdCl42- is easy on electrode surfaces by electrostatic interaction, and the assembly processes are monitored by cyclic voltammetry and UV-vis spectroscopy. The depth profile analyses by X-ray photoelectron spectroscopy verify the constant composition of the Pd nanoparticle multilayer films. Atomic force microscopy proves that the as-prepared Pd nanoparticles are uniformly distributed with an average particle diameter of 3-7 mn. The resulting Pd nanoparticle multilayer-modified electrode possesses high catalytic activity for the reduction of dissolved oxygen and oxidation of hydrazine compounds in aqueous solution. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Liu JY;Cheng L;Song YH;Liu BF;Dong SJ.Simple preparation method of multilayer polymer films containing Pd nanoparticles,LANGMUIR,2001,17(22):6747-6750 |
Palavras-Chave | #ELECTROCHEMICAL SENSING APPLICATIONS #ELECTROCATALYTIC OXIDATION #MAGNETITE NANOPARTICLES #DISPERSED ELECTRODES #4-AMINOBENZOIC ACID #CARBON-MONOXIDE #FORMIC-ACID #AU #SUPERSTRUCTURES #COLLOIDS |
Tipo |
期刊论文 |