Formation rate electrolysis time

On the basis of the above dimer formation model, a time course of the absorbance of Y-Dye (/4(f)) produced in an individual droplet has been analyzed [104]. The coupling reaction between QDI and Y-Cp is assumed to proceed at the oil-droplet/water interface (rate constant, kt) and the association equilibrium between the Y-Dye monomer and dimer is attained immediately upon the dye formation. In the actual experiments, QDI is oxidized partly by 02 dissolved in the water phase, so that Y-Dye is produced in a DBP droplet even before electrolysis of QDI. To correct this contribution, [Y-Dye] is defined as [Y-Cp]0 — [Y-Cp]j exp( — fc,[QDI]wf), where [Y-Cp]0 and [Y-Cp], are the Y-Cp concentrations at the emulsion preparation and t = 0 (before electrolysis), respectively. According to the... 

Figure 3. Average methane formation rate versus total electrolysis time (closed symbols reagent grade Na2S04 open symbols 99.999% Na2S04>.

Whereas azide ion (100 mM) was reduced with [Ru" L(H20)] (1 mM) in 5.3 pH at -0.500V vs SCE, the overall reaction was the azide ion constantly reduced to ammonia. The plot of moles of ammonia per mole of a catalyst vs electrolysis time was linear up to 10 h (Figure 4c), but above this showed a slight saturation due to the stabilization of some intermediate species. We strongly believe that a Ru species might have been involved in the catalytic cycle. The turnover rate for the formation of ammonia was calculated to be 4.96 with 100% coulombic efficiency. 

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