Electrically voltammetric data

Surface reactions that give rise to the electric crurent measmed depend on the electrode potential range and the type of measurements reported. The dominating reactions contributing to the voltammetric data in Fig. 13a-d are chemisorbed CO oxidation, oxidation of methanol to CO2 (on both scans), and chemisorbed CO formation on the reverse mn ... 

Electrochemical instruments are normally based on the changes in electrical energy that occur when a chemical reaction takes place, for example ion-selective electrodes (potentiometry) and voltammetric techniques. These can be measured in different ways and can give various qualitative and quantitative information about the reactants or products. In the case of conductivity measurements, changes in ionic content are monitored and, although nonspecific, can give useful data. 

Electrosorbed Co(II)-2 was characterized by Nyokong et al. [136] using cyclic voltammetric and electrochemical impedance spectroscopy EIS data and it was found to be highly stable and well organized, with an electron transfer rate constant in ferricyanide solution (of 6 x 10 cm s ) comparable to that of the SWNCT. The preferential electrosorption phenomena has been explained by Mamuru [96] in terms of the strong 7i-stacking interactions between Co(II)-2 and the side-wads of the SWCNTs. CNT electrodes modified with Co(II)-8 and Fe(III)-8 have been characterized by EIS using a modified Randles equivalent electrical circuits to fit the data. 

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