Functionalization of Artificial Freestanding Composite by pore forming method

Fabrication of pores with characteristic dimensions of the order of nanometers may be the most important kind of functionalization not only for Nano membranes, but also for membranes generally. Many critical applications depend on them, including those in filtering and separation. Voids in material may be regarded one of its two constituent phases, the other one being the basic material, thus a porous structure may be regarded a special kind of Nano composite. Tailoring of the structure of pores requires control over two main parameters. One is the desired pore geometry (shape and size) and the desired distribution. Regarding the shape, pores may be somewhat arbitrarily classified into several groups: linear pores which have one dimension much larger than the other two and may be straight (actually Nano channels going throughout the structure) or bending; equi-axed in which all three dimensions are of comparable size and which may have regular shapes (spherical, ellipsoidal, etc) or irregular. A sample may have one or more characteristic pore shapes.

کلیدواژه ها:

nano meter ، distribution ، porous ، nano composite ، fabrication ، dimention ، pore