Extractant Assisted Synthesis of Polymer Stabilized Platinum and Palladium Metal Nanoparticles for Sensor Applications |
| |
| Authors: | Dmitri N. Muraviev Maria Isabel Pividory José Luis Montañez Soto Salvador Alegret |
| |
| Affiliation: | 1. Grup de Sensors i Biosensors, Departament de Química , Universitat Autònoma de Barcelona , Bellaterra, Barcelona, Spain dimitri.muraviev@uab.es;3. Grup de Sensors i Biosensors, Departament de Química , Universitat Autònoma de Barcelona , Bellaterra, Barcelona, Spain |
| |
| Abstract: | Abstract Extractant‐assisted synthesis of platinum and palladium polymer‐stabilized metal nanoparticles (PSMNP) was carried out for the first time. The synthesis included the following sequential steps: a) loading of extractant (tributyl‐phosphine oxide, TBPO) with the desired metal ion; b) preparation of a membrane “cocktail” by mixing a metal‐containing extractant, solution of the polymer (PVC or polysulfone) and plastisizer; c) membrane deposition and metal reduction inside the membrane (intermatrix synthesis of PSMNP) by using either a chemical or an electrochemical reduction technique. The electro conductivity of the resulting polymer‐metal nanocomposite membrane appeared by several orders of magnitude higher than that of the metal‐free polymer. The mass‐exchange properties of PSMNP‐containing membranes were shown to depend on both the type of the polymer and the membrane deposition technique. |
| |
| Keywords: | Polymeric membrane extractant metal nanoparticles sensors |
|
|
