A molecular theory of chemically modified electrodes with self-assembled redox polyelectrolye thin films: Reversible cyclic voltammetry

2008 ◽  
Vol 53 (23) ◽  
pp. 6740-6752 ◽  
Author(s):  
Mario Tagliazucchi ◽  
Ernesto J. Calvo ◽  
Igal Szleifer
Keyword(s):  
Thin Films ◽  
Cyclic Voltammetry ◽  
Modified Electrodes ◽  
Chemically Modified Electrodes ◽  
Molecular Theory ◽  
Chemically Modified ◽  
Self Assembled

Computational investigations of electronic structure modifications of ferrocene-terminated self-assembled monolayers: effects of electron donating/withdrawing functional groups attached on the ferrocene moiety

2017 ◽  
Vol 19 (48) ◽  
pp. 32715-32722 ◽  
Author(s):  
Yasuyuki Yokota ◽  
Sumito Akiyama ◽  
Yukio Kaneda ◽  
Akihito Imanishi ◽  
Kouji Inagaki ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Functional Groups ◽  
Electronic Structures ◽  
Modified Electrodes ◽  
Chemically Modified Electrodes ◽  
Self Assembled Monolayers ◽  
Chemically Modified ◽  
Redox Center ◽  
Assembled Monolayers ◽  
Self Assembled

The electronic structures of chemically modified electrodes can be tuned by the functional groups attached on the redox center.

AFM and SEM Characterization of Chemically Modified Electrodes Based on 5-[(azulen-1-yl) methylene]-2-thioxothiazolidin-4-one

2018 ◽  
Vol 68 (12) ◽  
pp. 2799-2803
Author(s):  
Maria Daniela Pop ◽  
Oana Brincoveanu ◽  
Mihaela Cristea ◽  
George Octavian Buica ◽  
Marius Enachescu ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Roughness Parameter ◽  
Modified Electrodes ◽  
Chemically Modified Electrodes ◽  
Adhesion Properties ◽  
Chemically Modified ◽  
Controlled Potential ◽  
Constant Potential ◽  
Metal Ions Detection

Preparation and microscopy characterization of polymer modified glassy carbon electrodes based on (5-[(azulen-1-yl) methylene]-2-thioxothiazolidin-4-one (L) were reported. Atomic Force Microscopy was used to investigate the morphological and mechanical properties of the deposited polyL films onto glassy carbon. The topography images of the analyzed samples exhibited the presence of some columnar shape features onto the layer surfaces. The surface roughness of the layers deposited at constant charge calculated from topography images, increased with the more positive applied potential for controlled potential electrolysis. At different charges, the roughness parameter showed the same behavior for the layers obtained applying a constant potential without having a noticeable influence on the adhesion properties on the substrate. Analysis using scanning electron microscopy shows a relatively uniform surface arrangement of the polymer and the presence of some clusters which are disturbing the planarity. PolyL chemically modified electrodes have been used for heavy metal ions detection with best results for lead.

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