Applications of porous materials

Abstract

There are many techniques for separation as shown in Figure 1.3. Filtration, by passing a liquid or gas through a porous material to make it pure, is a common separation method. Filtration is used for many applications requiring a particular particle size or pore size. Porous filters have been used in many ways from dairy applications to high-tech processing. Many kinds of materials have been used as porous filters. Paper and cloth are very widely used porous materials. In this book we focus on metals, ceramics and glasses. The comparison of porous materials with respect to some specific properties is listed in Table 1.3. High penetrating porosity, high fluid permeability, narrow pore size distribution, and high mechanical strength are required for porous material filters. Filters for use at high temperatures, such as for exhaust gas filtration in automobiles require high thermal resistance, e.g. high temperature oxidation and corrosion resistance and creep resistance. High chemical stability is also required for filtration in chemical applications.KeywordsFuel CellPorous MaterialSolid Oxide Fuel CellHigh Specific Surface AreaAluminum FoamThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.