_ Section of the simulation process in (electrical nanoparticles)

Changing the chemical structure and the effect of reaction temperature on the size and structure of nano particles   

Researcher  and author: Doctor   (   Afshin Rashid)

 

Note: The effect of reaction temperature on the size of nanoparticles is different in determining the size of the reaction temperature, and the size of the particles plays a role as an indicator. A suitable reaction temperature produces nanocrystals with a narrow size.

 

At such a temperature, the stages of nucleation and growth happen separately and can even delay the start of the growth stage, so that it takes place after the formation of nuclei. In general, increasing the reaction temperature increases the rate of the reduction reaction. But regarding the effects of temperature, the loading and particle size of nanomaterials and the optimal temperature for the production of electrochemical nanoparticles by chemical reduction method were experimentally obtained for disturbed production conditions. Regarding the synthesis of nanoparticles using the chemical reduction method, with increasing reaction temperature, the size of electrochemical nanoparticles increased and non-uniform particles were obtained. This behavior at a lower temperature, the growth rate of the nuclei is lower and the size of the produced particles is smaller, and the uniformity of the required particles is higher. Investigating the effects of temperature on the chemical regeneration of nano-materials and the effect on electrochemical particles that temperature has significant effects on the shape, size and shape of nanoparticles. At low temperatures (zero degrees), the reaction rate is very low and the process of completing the reduction reaction takes hours. At a temperature between 10 and 55 degrees Celsius, with the increase in temperature, the rate of reaction increases and the size of the produced particles also increases.

As the reaction temperature increases, the size of the produced particles has decreased. The phenomenon of increasing the nucleation time is proportional to the increase in temperature, which reduces the size of the produced particles. Electrochemical reduction reaction  of nanoparticles produced at  09 degrees Celsius is smaller than particles produced at 59 degrees  Celsius  .  The effect of reaction time on the size of nanoparticles.  Reaction time is also one of the important parameters in controlling the size and  size of the final product. Reaction strategy in the early stages  of growth, smaller electrochemical nanoparticles can be obtained.  The strategy harms the overall efficiency of the reaction, because the monitoring of the material in this  case is partially converted to electrochemical nanoparticles. When  the precursor is added to the reaction solution, nucleation  begins immediately and small nanocrystals are formed, which causes a  clear change in the color of the solution. Over time, the produced nuclei  stick together and form larger particles. 

Although  more time passes from the reaction, more ions  are regenerated in the form of nano-electrochemical reduction and at the same time the nanoparticles  become  larger. For this  reason, the choice between reaction efficiency and particle size is necessary to deliver the electrochemical reaction  to the reaction time. Also, by increasing the reaction time  , the shape and size of the produced particles become more uniform.

 

 

 

Conclusion: 

The effect of the reaction temperature on the size of nanoparticles. The reaction temperature is different in determining the size, and the size of the particles plays a role as an indicator. A suitable reaction temperature produces nanocrystals with a narrow size.

Researcher  and author: Doctor   (   Afshin Rashid)

Specialized doctorate in nano-microelectronics