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Deposition of α–SiΜο12Ο404−-[Ru(bipyridine)(terpyridine)Cl]+ multilayer film on single wall carbon nanotube modified glassy carbon electrode: Improvement of the electrochemical properties and chemical stability by Abdollah Salimi; Aazam Korani; Rahman Hallaj; Saied Soltanian; Hasan Hadadzadeh is a Engineering article available to read on EtoBox.

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Layer-by-layer Silicon polyoxomolybdate [Ru(bipyridine)(terpyridine)Cl](PF 6 ) A simple procedure was developed for the preparation of glassy carbon electrodes modified with single wall carbon nanotubes (SWCNTs) and multilayers of SiΜο 12 Ο 40 4--[Ru(bpy)(tpy)Cl] + (byp; bipyridine, tpy; terpyridine). Layer-by-layer deposition technique was used for the multilayer formation of SiΜο 12 Ο 40 4--[Ru (bpy)(tpy)Cl] + onto SWCNTs films. Based on the strong electrostatic attraction of oppositely charged species a Ru-complex/poly oxometalate hybrid film strongly and irreversibly adsorbed on the glassy carbon electrode modified with single walled carbon nanotubes. The multilayer assembly exhibited good stability and excellent electrochemical reversibility for both redox systems in the pH range1-7. It was found that up to fifteen monolayers could be deposited onto a carbon nanotube film with well defined redox behavior. The modified electrode shows excellent electrocatalytic activity towards sulfite oxidation. Due to synergistic effect between SWCNTs and oppositely charged species the repeated alternate adsorption of anions and cations by this simple dipping method leads to molecular sandwic

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Author

Abdollah Salimi; Aazam Korani; Rahman Hallaj; Saied Soltanian; Hasan Hadadzadeh

Publisher

Elsevier Science; Elsevier ; Elsevier Sequoia; Elsevier BV (ISSN 0040-6090)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)