المنشورات براءة اختراع 2018 composite electrode for supercacitors مزيد من المنشورات Synthesis of porous carbon nanostructure formation from peel waste for low cost flexible electrode fabrication towards energy storage applications 2020 Synthesis of porous activated carbon powder formation from fruit peel and cow dung waste for modified electrode fabrication and application 2020 Template free method of preparing zeolites from biomass 2019