Physics Department;
Faculty of Education;
Ain-Shams University;
Cairo;
Egypt;
Physics Department;
Faculty of Science;
Jazan University;
Jazan;
Saudi Arabia;
Physics Department;
Faculty of Education and Science;
Taiz University;
Taiz;
Yemen;
CNCs; BNNCs; SiCNCs; DFT; Hydrogen Adsorption; Hydrogen Storage; Se-NCs;