Formation and characterization of heteropolyacid/polycation multilayer films on gold electrode
Data(s) |
2001
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Resumo |
Ultrathin multilayer films of a polybasic lanthanide heteropoly tungstate-molybdate complex and a cationic polymer of quaternized poly(4-vinylpyridine) partially complexed with osmium bis(2,2'-bipyridine) have been fabricated on a gold electrode precoated with a cysteamine self-assembled monolayer. The multilayer films have been characterized by optical spectroscopy, small-angle X-ray diffraction, and electrochemical methods (cyclic voltammetry and electrochemical impedance). Especially, the electrochemical impedance spectroscopy is developed to monitor the layer deposition processes. It provides important information such as double-layer capacitance and charge-transfer resistance. All obtained results reveal regular film growth with each layer adsorption. (C) 2001 The Electrochemical Society. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Cheng ZL;Cheng L;Dong SJ;Yang XR.Formation and characterization of heteropolyacid/polycation multilayer films on gold electrode,JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2001,148(5):E227-E232 |
Palavras-Chave | #SELF-ASSEMBLED MULTILAYERS #BY-LAYER ADSORPTION #ELECTROCHEMICAL-BEHAVIOR #ELECTROCATALYTIC REDUCTION #HETEROPOLYTUNGSTATE ANIONS #MOLECULAR FILMS #ULTRATHIN FILMS #COMPOSITE FILMS #THIN-FILMS #POLYELECTROLYTE |
Tipo |
期刊论文 |