ABSTRACT
Nanomaterials have gathered much interest by various researchers in the past few years due to their specific and unique electrical, mechanical, optical, and magnetic properties. These properties make nanomaterials special, and they are used in various applications, such as for production of gas-tight materials where one makes use of nanostructured metallic powder. In gas sensors, due to their enhanced selectivity and sensitivity, nanostructured metal oxide thin films are being used. All such applications lead to the development of nanomaterials using various methods. Nanomaterials deal with the finest structures. This indeed allows researchers to think about different approaches to creating different nanomaterials. Two different approaches may be used to make nanomaterials. One is to assemble atoms together to make the nanomaterial, and the other approach follows the disassemble method by breaking large or bulk solids into small structures till they are constituted of only a few atoms. Different methods used for making nanostructures and nanomaterials include mechanical grinding, sol-gel process, arc discharge method, laser ablation method, and many more. The chapter describes all the possible methods of creating nanomaterials.
