افشین رشید
اُستادیار ؛ عضو هیات علمی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران
492 یادداشت منتشر شدهInvestigating The Properties or Methodology (Electric Nanoparticles) in The Simulation Process Nanoparticle Methodology

Note: Many methods have been developed to produce nanoparticles or nanostructured particles, including vapor, liquid, and solid state processes.
In general, chemical reactions to produce nanoparticles can take place in any of the solid, liquid, or gas states. The common method for producing materials in solids is to increase the contact surface area of the particles by crushing them, and then to increase the penetration of atoms and ions, this mixture is further increased at high temperatures. In chemistry, the substances with which chemical reactions are initiated, the reactants, and the substances into which they are converted during the reaction (the reactants), are called products. Reactants can be solids, liquids, or gases. In addition, reactants can be either independent elements themselves or can be in the form of multicomponent compounds. Multicomponent compounds are usually called precursors.

To produce nanoparticles with the help of nanotechnology, it is possible to make changes in atoms by controlling their properties. When materials are studied and investigated at the nanoscale, the reactions and behavior of atoms are completely different compared to when the study is done at the molecular level, because in this realm the physical properties of the materials change. This is just like dropping a ball into a container and taking another ball out of that container. The difference in the nano realm is so great that even the color, melting point, chemical properties, etc. of the materials outside this range are completely different.

In nanotechnology, two manufacturing methods are considered: the bottom-up manufacturing method and the top-down manufacturing method. In the bottom-up manufacturing method, devices and materials are manufactured from the molecular level based on the principles of molecular chemistry, just like a wall is built by stacking bricks. In the top-down manufacturing method, nano-objects are manufactured in larger quantities without atomic control by using advanced equipment of this technology such as atomic force microscopy and scanning tunneling microscope to manipulate and create new phenomena and properties in nano-objects. One of the important properties of nanoparticles is the high surface area to volume ratio of these materials. Using this property, powerful catalysts can be produced in nanometer dimensions. These nanocatalysts will greatly increase the efficiency of chemical reactions and will also significantly prevent the production of waste products in reactions. Using nanoparticles in the production of other materials can increase their strength or reduce their weight, increase their chemical and thermal resistance , and change their reaction to light and other radiation. So the first application that can be imagined for nanoparticles is the use of these materials in the production of nanocomposites. By using nanoparticles, the strength-to-weight ratio of composite materials will increase dramatically.
Conclusion:
Many methods have been developed to produce nanoparticles or nanostructured particles, including vapor, liquid, and solid state processes.