Morphology, colloidal model particles from

For the structural characterization of model electrodes it was shown that on the base of well-defined substrates, composite electrodes tvith defined mesoscopic structure can be prepared. Rather different methods such as low-efficiency electrochemical deposition or adsorption of colloidal particles can be employed for this purpose, and the effect on the surface morphology can be adequately characterized with STM. Knowledge of the mesoscopic siarface properties facilitates the interpretation of results obtained from other techniques, e. g., conventional electrochemical methods or infrared spectroscopy [6], since these are affected by the surface structure but do not contain detailed information about the morphology. 

FIGURE 1.200 Pore size distributions (model of voids between spherical particles) for initial and hydrothermally treated nanosilicas. (Adapted from J. Colloid Interface ScL, 269, Gun ko, V.M., Skubiszewska-Zi ba, J., Leboda, R. et al., Influence of morphology and composition of fumed oxides on changes in their structural and adsorptive characteristics on hydrothermal treatment at different temperatures, 403-424, 2004a. Copyright 2004, with permission from Elsevier.)... 

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