Mohsen Mehrabi

In the future, due to the lack of energy and biological pollution, many challenges will be faced in the transition of societies from non-renewable energy systems to renewable energy sources, and this will lead the scientific community to explore sustainable alternative energy sources. Hydrogen due to its extraordinary energy efficiency and compatibility With the environment, the fuel of the future is considered. Hydrogen storage research is a critical aspect of the development of hydrogen and fuel cell technologies for energy and transportation applications. This research consists of two parts. In the first part, the structural and optical properties of semi-porous silica nanoparticles and carbon quantum dots have been investigated, and the optical band gap of these two samples was investigated using the Tack diagram, and in the second part, the amount of hydrogen storage capacity in semi-porous silica nanoparticles as a substrate And the effect of silver and copper intermediate metals contamination and carbon dots on the increase of hydrogen absorption has been investigated. Therefore, in the first step, semi-porous silica nanoparticles were produced by CTAB template method and the structural characteristics of the sample were evaluated with the help of BET, SEM, TEM, UV, XRD and FT-IR analyses. The hydrogen absorption capacity was obtained on semi-porous silica nanoparticles by using the electrochemical method at a current of 2 mA. The obtained results showed that the storage capacity of hydrogen in semi-porous silica nanoparticles was significantly high. To be more precise, the storage capacity of hydrogen in a current of 2 milliamps is equal to 15.39% by weight. This amount of storage capacity can be attributed to the high porosity level and the easy access of absorbed molecules. In the next step, metallic nanoparticles of silver and copper were loaded on silica nanoparticles using the chemical reduction method, and based on the results of the absorption tests,