Metals electrochemical behaviour

Kolotyrkin, Y. M., Electrochemical Behaviour of Metals During Anodic and Chemical Passivation in Electrolytic Solutions , 1st Intern. Congr. Metallic Corrosion, Butterworths, London, 10 (1962)... 

Trasath S. 1972. Workfimchon, electronegahvity, and electrochemical behaviour of metals III. 

Trasatti S. 1972. Work function, electronegativity, and electrochemical behaviour of metals. IB. Electrolytic hydrogen evolution in acid solutions. Electroanal Chem Interfacial Electrochem 39 163-184. 

Stabilization of Ru based oxides by valve metal oxides has not been studied in such detail using photoelectron spectroscopy. The most common compositions, however, with relatively high valve metal content, are not in favor of formation of a solid solution. Studies of the phase formation in Ru/Ti mixed oxides has shown [49] that homogeneous solutions are formed for compositions with Ru < 2% or Ru > 98% (see Section 3.1.1). Therefore electrodes with other compositions are better described as physical mixtures and the electrochemical behaviour is most likely that of a linear superposition of the single components. It has to be considered, however, that the investigations performed by Triggs [49] concern thermodynamic equilibrium conditions. If, by means of the preparation procedure, thermodynamic equilibrium is... 

Although, as just pointed out, a number of the properties of Co(n) cage and non-cage metal complexes may be very different, similarities between related complexes also occur. For example, the magnetic and visible spectral properties of [Co(l,2-diaminoethane)3]3+ and [Co(sepul-chrate)]2+ are essentially the same, although some differences in their circular dichroism spectra are apparent. Differences also occur in the electrochemical behaviour of cage and non-cage species but further mention of these is deferred until Chapter 8. 

The electrochemical behaviour of the compounds containing bonds between silicon and other group-14-metals is also interesting. Mochida et al. reported the electrochemical oxidation potentials of group-14-dimetals [66], As shown in Table 8, there is a good correlation between the oxidation potentials and the ionization potentials which decrease in the order Si-Si > Si-Ge > Ge-Ge > Si-Sn > Ge-Sn > Sn-Sn in accord with the metal-metal ionic bond dissociation energy. 

In 1990 we reported the synthesis of new redox-responsive crown ether molecules that contain a conjugated link between the crown ether unit and a ferrocene redox-active centre (Beer et al., 1990a). Examples of some of the species synthesized are shown in Fig. 5. The electrochemical behaviour of these species was investigated and also the electrochemical behaviour of their analogues with a saturated link between the ferrocene unit and the crown ether. The changes in the CVs of [2a] upon addition of magnesium cations are shown in Fig. 6. The metal cation-induced anodic shifts of [2a], [2b] and also their saturated analogue [3] and vinyl derivatives [4a], [4b] are shown in Table 1. 

The Electrochemical Behaviour of First Row Transition Metal Metallocenes... 

An exhaustive treatment of the electrochemical behaviour of transition metal complexes is beyond the scope of this book, because the enormous number of ligands available, combined with the possibility to prepare mono- and/or polynuclear complexes using identical or mixed ligands, would render such a task almost impossible. Therefore, the discussion is limited to some aspects associated with the redox properties of (essentially) mononuclear metal complexes. In particular, we will concentrate representatively on the redox changes of first row transition metal complexes (excluding the metallocene complexes, as they have been already discussed in Chapter 4) that give stable, or relatively stable products. A systematic and useful examination of the redox activity of organometallic complexes of transition metals dated to 1984 has appeared.1... 

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