Functional dual-film electrode

Electrocatalytic reduction of COj to worthier compounds on a functional dual-film electrode with a solar cell as the energy source... 

The electrochemical reduction of COj in aqueous solution on a functional dual-film electrode consisting of Prussian blue and polyaniline doped with a metal complex using a solar cell as the energy source led to the formation of lactic acid, formic acid, methanol, etc., and the maximum current efficiency for the COj reduction was more than 20 % at -0.8 V vs Ag I AgCI. 

It was demonstrated that COj can be reduced to C, C3 compounds involving lactic acid on the functional dual-film electrode with a solar cell in aqueous solution. This process is accompanied by the simultaneous evolution of oxygen at the counter electrode, which bears a close resemblance to natural photosynthesis. 

Ogura K, Yamada M, Nakayama M, Endo N (1998) Electrocatalytic reduction of CO2 to worthier compounds on a functional dual-film electrode with a solar cell as the energy source. Stud Surf Sci Catal 114 207-212... 

Table 20.8 contains a compilation of literature entries on the voltammetry of conducting polymer films. The scope of these studies is similar to that of the transient experiments discussed in Section V.A in terms of the types of electrodes and media employed. Both cyclic and hydrodynamic voltammetry have been used as shown in Table 20.8. Other aspects under discussion include the mathematic modeling of cyclic voltammo-grams [277,278], the occurrence and origin of prewaves in the cyclic voltammograms [319], the use of very fast scan rates [220], structural relaxation effects and their manifestation in voltammetry [304,317,320], the inactivation of polymer electroactivity when driven to extreme potentials, and the so-called polythiophene paradox [225,226,306,321]. Unusual media and cryogenic temperatures have also been employed for the volta-mmetric observation of doping phenomena [322-325]. Dual-electrode voltammetry (Section II.1) has been performed on derivatized polypyrrole [290] in an attempt to deconvolute the electronic and ionic contributions to the overall conductivity of the sample as a function of electrode potential. Finally, voltammetry has been carried out in the solid state , i.e., in the absence of electrolyte solutions [215,323].

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