Porous materials have attracted considerable attention in the last decades because of the wide variety of scientific and technological applications, such as catalysis, shape- and size-selective absorption and adsorption, gas storage, and electrode materials. This book assesses the electrochemistry of porous materials by combining theoretical modeling with a description of redox processes for different porous materials and their electrochemical applications. To present a focused analysis, the author limits discussion to a selection of important porous materials considered relatively homogeneous, from an electrochemical point of view. For brevity, discussion of metal and metal-oxide nanopartcles, fullerenes, and dendrimers is limited to their appearance in hybrid materials as modifiers for microporous materials.