Dissolution pattern evolution

In voltammetric experiments, electroactive species in solution are transported to the surface of the electrodes where they undergo charge transfer processes. In the most simple of cases, electron-transfer processes behave reversibly, and diffusion in solution acts as a rate-determining step. However, in most cases, the voltammetric pattern becomes more complicated. The main reasons for causing deviations from reversible behavior include (i) a slow kinetics of interfacial electron transfer, (ii) the presence of parallel chemical reactions in the solution phase, (iii) and the occurrence of surface effects such as gas evolution and/or adsorption/desorption and/or formation/dissolution of solid deposits. Further, voltammetric curves can be distorted by uncompensated ohmic drops and capacitive effects in the cell [81-83]. 

The patterns of diagenetic evolution recognized in this study allow discussion of the conditions for optimum porosity preservation and/or enhancement in the Serraria reservoirs. The best reservoirs of the unit occur in the Caioba area of the distal domain, where porosity was enhanced by dissolution of detrital feldspars and dolomite cement during telogenetic influx of meteoric waters. Similar conditions are expected for other structural blocks of the basin affected by post-rift uplift and erosion, or blocks bounded by major fault systems in which the Serraria Formation was relatively close to the... 

Solid waxes are a material class which is also compatible with liquid deposition processes. These can be heated in the printhead and deposited on the substrate held below the melting point of the material. Once the material prints it freezes-by taking advantage of the phase change there is no need for drying and no solvent evolution or underlayer dissolution. These liquid deposited waxes can be used as etch resists and affinity modulation layers for patterning. 

At the beginning, cyclic voltammetry (CV) was conducted for the cathode. The CV curve obtained showed no characteristic peaks other than lithium deposition and chlorine evolution (or tungsten dissolution). It is typical for the electrolysis of a LiCl-KCl electrolyte and suggests that the deposition of lithium at the cathode was successfully completed. Therefore, galvanostatic electrolysis was carried out with a current density of 0.3 A/cm. The X-ray diffraction (XRD) pattern of the material on the cathode is shown in Figure 7.5.3. Peaks of metallic lithium were apparently found in addition to LiCl and KCl as the electrolyte components. Furthermore, chlorine was not detected in the exhaust. This suggests that the reaction of Equation 7.5.4 was successfully achieved. In other words, LiOH was electrolyzed without problem. 

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