Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films
Electrodes modified layer-by-layer by self-assembly of redox active polyelectrolytes comprised of osmium bipyridine-pyridine derivatized poly(allyl-amine) and poly(vinyl) sulfonate have been studied by EQCM, ellipsometry, cyclic voltammetry and electrochemical impedance spectroscopy in aqueous solut...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v8_n43_p5086_Tagliazucchi http://hdl.handle.net/20.500.12110/paper_14639076_v8_n43_p5086_Tagliazucchi |
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paper:paper_14639076_v8_n43_p5086_Tagliazucchi2023-06-08T16:16:37Z Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films cation electrolyte ion nanomaterial oxygen solvent article chemical model chemistry electrochemistry electrode methodology nanotechnology oxidation reduction reaction physical chemistry surface property time Cations Chemistry, Physical Electrochemistry Electrodes Electrolytes Ions Models, Chemical Nanostructures Nanotechnology Oxidation-Reduction Oxygen Solvents Surface Properties Time Factors Electrodes modified layer-by-layer by self-assembly of redox active polyelectrolytes comprised of osmium bipyridine-pyridine derivatized poly(allyl-amine) and poly(vinyl) sulfonate have been studied by EQCM, ellipsometry, cyclic voltammetry and electrochemical impedance spectroscopy in aqueous solutions of different anions and cations. Redox driven swelling by solvent exchange during oxidation, in excess to the hydration number, occurs by perturbation of the equilibrium between the osmotic and elastic forces as a result of the electrochemical injection of charge into the film. The exchanged mass and volume change during redox switching strongly depends on the nature of the anion under anion Donnan permselectivity conditions. © the Owner Societies 2006. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v8_n43_p5086_Tagliazucchi http://hdl.handle.net/20.500.12110/paper_14639076_v8_n43_p5086_Tagliazucchi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
cation electrolyte ion nanomaterial oxygen solvent article chemical model chemistry electrochemistry electrode methodology nanotechnology oxidation reduction reaction physical chemistry surface property time Cations Chemistry, Physical Electrochemistry Electrodes Electrolytes Ions Models, Chemical Nanostructures Nanotechnology Oxidation-Reduction Oxygen Solvents Surface Properties Time Factors |
| spellingShingle |
cation electrolyte ion nanomaterial oxygen solvent article chemical model chemistry electrochemistry electrode methodology nanotechnology oxidation reduction reaction physical chemistry surface property time Cations Chemistry, Physical Electrochemistry Electrodes Electrolytes Ions Models, Chemical Nanostructures Nanotechnology Oxidation-Reduction Oxygen Solvents Surface Properties Time Factors Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| topic_facet |
cation electrolyte ion nanomaterial oxygen solvent article chemical model chemistry electrochemistry electrode methodology nanotechnology oxidation reduction reaction physical chemistry surface property time Cations Chemistry, Physical Electrochemistry Electrodes Electrolytes Ions Models, Chemical Nanostructures Nanotechnology Oxidation-Reduction Oxygen Solvents Surface Properties Time Factors |
| description |
Electrodes modified layer-by-layer by self-assembly of redox active polyelectrolytes comprised of osmium bipyridine-pyridine derivatized poly(allyl-amine) and poly(vinyl) sulfonate have been studied by EQCM, ellipsometry, cyclic voltammetry and electrochemical impedance spectroscopy in aqueous solutions of different anions and cations. Redox driven swelling by solvent exchange during oxidation, in excess to the hydration number, occurs by perturbation of the equilibrium between the osmotic and elastic forces as a result of the electrochemical injection of charge into the film. The exchanged mass and volume change during redox switching strongly depends on the nature of the anion under anion Donnan permselectivity conditions. © the Owner Societies 2006. |
| title |
Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| title_short |
Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| title_full |
Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| title_fullStr |
Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| title_full_unstemmed |
Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| title_sort |
nanostructured modified electrodes: role of ions and solvent flux in redox active polyelectrolyte multilayer films |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v8_n43_p5086_Tagliazucchi http://hdl.handle.net/20.500.12110/paper_14639076_v8_n43_p5086_Tagliazucchi |
| _version_ |
1768545159601979392 |