scholarly journals Electrochemical Properties of N'-Ferrocenylmethyl-N'-Phenylbenzohydrazide in Aqueous and Organic Mediums

2013 ◽  
Vol 10 ◽  
pp. 76-85
Author(s):  
Salah Neghmouche Nacer ◽  
Touhami Lanez
Keyword(s):  
Kinetic Data ◽  
Electrochemical Techniques ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
Ion Diffusion ◽  
Electron Transfer Rate ◽  
Kinetics Of Oxidation ◽  
Electron Transfer Rate Constant ◽  
Transport Control ◽  
Kinetics Of

We carried out a detailed study of the kinetics of oxidation of N'-ferrocenylmethyl-N'-phenylbenzohydrazide (FcX) to ferrocenium ion (FcX+) in aqueous and organic mediums. This study using cyclic (CV) and rotating disk electrode (RDE) voltammetry showed that the FcX/FcX+ redox couple is reversible. The N'-ferrocenylmethyl-N'-phenylbenzohydrazide and ferrocenium ion diffusion coefficients (D) were calculated from these results. In addition, the electron transfer rate constant and the exchange current density for the oxidation of ferrocene were determined. A comparison of the kinetic data obtained from the two electrochemical techniques appears to show that the data from the RDE experiments are more reliable because they are collected under strict mass transport control.

scholarly journals The Effect of Hydrazide Group on the Oxydation of Ferrocene at Two Different Electrodes Using Rotating Disk Electrode (RDE) in Organic Medium

2013 ◽  
Vol 12 ◽  
pp. 1-7
Author(s):  
Salah Neghmouche Nacer ◽  
Touhami Lanez
Keyword(s):  
Rotating Disk ◽  
Electrochemical Stability ◽  
Organic Medium ◽  
Rotating Disk Electrode ◽  
Electrochemical System ◽  
Disk Electrode ◽  
Electron Transfer Rate ◽  
Kinetics Of Oxidation ◽  
Electrochemical Parameters ◽  
Kinetics Of

Through this work we adopted Rotating Disk Electrode (RDE) Voltammetry to study the kinetics of oxidation and the effect of hydrazide group on ferrocene in organic medium. Thus, two different electrodes (Pt and Ge) were used in order to determine this latter. According to the ferrocene taken as a witness the hydrazide group related to the ferrocene made oxidation more difficult. This ferrocenic derivative showed an electrochemical stability, a reversible electrochemical system and an electronic attractor effect of these substitutional ferrocene groups. Finally, we calculated some electrochemical parameters which were: the diffusion coefficients (D), the layer thickness ‹δ› in addition to the electron transfer rate.

scholarly journals Calculation of Diffusion Coefficients for Oxidation of Ferrocene Derivative Synthesized at Two Different Electrodes Using Rotating Disk Electrode (RDE)

2013 ◽  
Vol 14 ◽  
pp. 39-47
Author(s):  
Salah Neghmouche Nacer ◽  
Abdelhamid Khelef ◽  
Touhami Lanez
Keyword(s):  
Diffusion Coefficients ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
Electrochemical System ◽  
Disk Electrode ◽  
Electron Transfer Rate ◽  
Ferrocene Derivative ◽  
Kinetics Of Oxidation ◽  
Electrochemical Parameters ◽  
Kinetics Of

The electrochemical behavior of N'-Ferrocenylmethyl-N'-Phenylbenzohydrazide synthesized is studied by Rotating Disk Electrode (RDE) Voltammetry to study the kinetics of oxidation and the effect of hydrazide group on ferrocene in organic medium. Thus, two different electrodes (Pt and Gc) were used in ordre to determine this latter. According to the ferrocene taken as a witness the hydrazide group related to the ferrocene made oxydation more difficult. This ferrocenic derivative showed an electrochemical stability, a reversible electrochemical system and an electronic attractor effect of these substitutional ferrocene groups. Finally, we calculated some electrochemical parameters which were: the diffusion coefficients (D), the layer thickness (δ) in addition to the electron transfer rate.

Temperature effects on the kinetics of a PbO2 electrosynthesis process in an alkaline bath

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 88350-88357 ◽  
Author(s):  
Shiwei He ◽  
Ruidong Xu ◽  
Jiong Wang ◽  
Sha Han ◽  
Buming Chen
Keyword(s):  
Temperature Effects ◽  
Lead Dioxide ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
Alkaline Solutions ◽  
Electrochemical Investigation ◽  
Disk Electrode ◽  
Alkaline Bath ◽  
Kinetics Of

An electrochemical investigation of temperature on the electrosynthesis of lead dioxide in alkaline solutions was performed using a rotating disk electrode (RDE).

Electrochemistry in Nanostructered Inorganic Molecular Materials

2001 ◽  
Vol 676 ◽  
Author(s):  
Mary Elizabeth Williams ◽  
Joseph T. Hupp
Keyword(s):  
Electrochemical Techniques ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
Primary Methods ◽  
Bridging Ligands ◽  
Sensing Applications ◽  
Rotating Disk Electrode Voltammetry ◽  
Molecular Squares ◽  
Electrochemical Microscopy

ABSTRACTWe have previously described the synthesis of a family of molecular ‘squares’ based on octahedral Re(I) coordination of difunctional bridging ligands. The size and chemical composition of the square cavity is highly tunable, and the inorganic cyclophanes are being actively studied in catalytic, separations, and sensing applications. Electrochemical techniques have been primary methods for characterization of the transport properties of thin films of the nanostructured materials. For example, cyclic voltammetry and rotating disk electrode voltammetry experiments have revealed size-selective permeation by redox probes, where the size cutoff is determined by the internal square dimensions. We have more recently begun to employ scanning electrochemical microscopy to spatially image micropatterned electrodes containing these thin film materials, simultaneously allowing us to obtain permeability data and topographical information. This paper describes data obtained by employing porphyrin-based molecular squares that feature chemically tailored cavities.

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